Search for Lepton Number and Flavor Violation in K+ and π0 Decays

R. Aliberti (Institut für Physik and PRISMA Cluster of Excellence, Universität Mainz, D-55099 Mainz, Germany) ; F. Ambrosino (Dipartimento di Fisica “Ettore Pancini” e INFN, Sezione di Napoli, I-80126 Napoli, Italy) ; R. Ammendola (INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy) ; B. Angelucci (University of Glasgow, Glasgow G12 8QQ, United Kingdom) ; A. Antonelli (Laboratori Nazionali di Frascati, I-00044 Frascati, Italy) ; et al. - Show all 202 authors

Searches for the lepton number violating K+πμ+e+ decay and the lepton flavor violating K+π+μe+ and π0μe+ decays are reported using data collected by the NA62 experiment at CERN in 2017–2018. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level: B(K+πμ+e+)<4.2×1011, B(K+π+μe+)<6.6×1011 and B(π0μe+)<3.2×1010. These results improve by 1 order of magnitude over previous results for these decay modes.

{
  "_oai": {
    "updated": "2022-04-05T09:43:56Z", 
    "id": "oai:repo.scoap3.org:64871", 
    "sets": [
      "PRL"
    ]
  }, 
  "authors": [
    {
      "raw_name": "R. Aliberti", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik and PRISMA Cluster of Excellence, Universit\u00e4t Mainz, D-55099 Mainz, Germany"
        }
      ], 
      "surname": "Aliberti", 
      "given_names": "R.", 
      "full_name": "Aliberti, R."
    }, 
    {
      "raw_name": "F. Ambrosino", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Ambrosino", 
      "given_names": "F.", 
      "full_name": "Ambrosino, F."
    }, 
    {
      "raw_name": "R. Ammendola", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy"
        }
      ], 
      "surname": "Ammendola", 
      "given_names": "R.", 
      "full_name": "Ammendola, R."
    }, 
    {
      "raw_name": "B. Angelucci", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Glasgow, Glasgow G12 8QQ, United Kingdom"
        }
      ], 
      "surname": "Angelucci", 
      "given_names": "B.", 
      "full_name": "Angelucci, B."
    }, 
    {
      "raw_name": "A. Antonelli", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Laboratori Nazionali di Frascati, I-00044 Frascati, Italy"
        }
      ], 
      "surname": "Antonelli", 
      "given_names": "A.", 
      "full_name": "Antonelli, A."
    }, 
    {
      "raw_name": "G. Anzivino", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Geologia dell\u2019Universit\u00e0 e INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Anzivino", 
      "given_names": "G.", 
      "full_name": "Anzivino, G."
    }, 
    {
      "raw_name": "R. Arcidiacono", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Arcidiacono", 
      "given_names": "R.", 
      "full_name": "Arcidiacono, R."
    }, 
    {
      "raw_name": "T. Bache", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Bache", 
      "given_names": "T.", 
      "full_name": "Bache, T."
    }, 
    {
      "raw_name": "A. Baeva", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Baeva", 
      "given_names": "A.", 
      "full_name": "Baeva, A."
    }, 
    {
      "raw_name": "D. Baigarashev", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Baigarashev", 
      "given_names": "D.", 
      "full_name": "Baigarashev, D."
    }, 
    {
      "raw_name": "M. Barbanera", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Barbanera", 
      "given_names": "M.", 
      "full_name": "Barbanera, M."
    }, 
    {
      "raw_name": "J. Bernhard", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Bernhard", 
      "given_names": "J.", 
      "full_name": "Bernhard, J."
    }, 
    {
      "raw_name": "A. Biagioni", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma I, I-00185 Roma, Italy"
        }
      ], 
      "surname": "Biagioni", 
      "given_names": "A.", 
      "full_name": "Biagioni, A."
    }, 
    {
      "raw_name": "L. Bician", 
      "affiliations": [
        {
          "country": "Slovakia", 
          "value": "Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia"
        }
      ], 
      "surname": "Bician", 
      "given_names": "L.", 
      "full_name": "Bician, L."
    }, 
    {
      "raw_name": "C. Biino", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Biino", 
      "given_names": "C.", 
      "full_name": "Biino, C."
    }, 
    {
      "raw_name": "A. Bizzeti", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Italy"
        }
      ], 
      "surname": "Bizzeti", 
      "given_names": "A.", 
      "full_name": "Bizzeti, A."
    }, 
    {
      "raw_name": "T. Blazek", 
      "affiliations": [
        {
          "country": "Slovakia", 
          "value": "Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia"
        }
      ], 
      "surname": "Blazek", 
      "given_names": "T.", 
      "full_name": "Blazek, T."
    }, 
    {
      "raw_name": "B. Bloch-Devaux", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Bloch-Devaux", 
      "given_names": "B.", 
      "full_name": "Bloch-Devaux, B."
    }, 
    {
      "raw_name": "V. Bonaiuto", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy"
        }
      ], 
      "surname": "Bonaiuto", 
      "given_names": "V.", 
      "full_name": "Bonaiuto, V."
    }, 
    {
      "raw_name": "M. Boretto", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Boretto", 
      "given_names": "M.", 
      "full_name": "Boretto, M."
    }, 
    {
      "raw_name": "A.\u2009M. Bragadireanu", 
      "affiliations": [
        {
          "country": "Romania", 
          "value": "Horia Hulubei National Institute of Physics for R&D in Physics and Nuclear Engineering, 077125 Bucharest-Magurele, Romania"
        }
      ], 
      "surname": "Bragadireanu", 
      "given_names": "A.\u2009M.", 
      "full_name": "Bragadireanu, A.\u2009M."
    }, 
    {
      "raw_name": "D. Britton", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Glasgow, Glasgow G12 8QQ, United Kingdom"
        }
      ], 
      "surname": "Britton", 
      "given_names": "D.", 
      "full_name": "Britton, D."
    }, 
    {
      "raw_name": "F. Brizioli", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Geologia dell\u2019Universit\u00e0 e INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Brizioli", 
      "given_names": "F.", 
      "full_name": "Brizioli, F."
    }, 
    {
      "raw_name": "M.\u2009B. Brunetti", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Brunetti", 
      "given_names": "M.\u2009B.", 
      "full_name": "Brunetti, M.\u2009B."
    }, 
    {
      "raw_name": "D. Bryman", 
      "affiliations": [
        {
          "country": "Canada", 
          "value": "University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada"
        }
      ], 
      "surname": "Bryman", 
      "given_names": "D.", 
      "full_name": "Bryman, D."
    }, 
    {
      "raw_name": "F. Bucci", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Italy"
        }
      ], 
      "surname": "Bucci", 
      "given_names": "F.", 
      "full_name": "Bucci, F."
    }, 
    {
      "raw_name": "T. Capussela", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Capussela", 
      "given_names": "T.", 
      "full_name": "Capussela, T."
    }, 
    {
      "raw_name": "J. Carmignani", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Lancaster, Lancaster LA1 4YW, United Kingdom"
        }
      ], 
      "surname": "Carmignani", 
      "given_names": "J.", 
      "full_name": "Carmignani, J."
    }, 
    {
      "raw_name": "A. Ceccucci", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Ceccucci", 
      "given_names": "A.", 
      "full_name": "Ceccucci, A."
    }, 
    {
      "raw_name": "P. Cenci", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Cenci", 
      "given_names": "P.", 
      "full_name": "Cenci, P."
    }, 
    {
      "raw_name": "V. Cerny", 
      "affiliations": [
        {
          "country": "Slovakia", 
          "value": "Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia"
        }
      ], 
      "surname": "Cerny", 
      "given_names": "V.", 
      "full_name": "Cerny, V."
    }, 
    {
      "raw_name": "C. Cerri", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Cerri", 
      "given_names": "C.", 
      "full_name": "Cerri, C."
    }, 
    {
      "raw_name": "B. Checcucci", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Checcucci", 
      "given_names": "B.", 
      "full_name": "Checcucci, B."
    }, 
    {
      "raw_name": "A. Conovaloff", 
      "affiliations": [
        {
          "country": "USA", 
          "value": "George Mason University, Fairfax, Virginia 22030, USA"
        }
      ], 
      "surname": "Conovaloff", 
      "given_names": "A.", 
      "full_name": "Conovaloff, A."
    }, 
    {
      "raw_name": "P. Cooper", 
      "affiliations": [
        {
          "country": "USA", 
          "value": "George Mason University, Fairfax, Virginia 22030, USA"
        }
      ], 
      "surname": "Cooper", 
      "given_names": "P.", 
      "full_name": "Cooper, P."
    }, 
    {
      "raw_name": "E. Cortina Gil", 
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Universit\u00e9 Catholique de Louvain, B-1348 Louvain-La-Neuve, Belgium"
        }
      ], 
      "surname": "Cortina Gil", 
      "given_names": "E.", 
      "full_name": "Cortina Gil, E."
    }, 
    {
      "raw_name": "M. Corvino", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Corvino", 
      "given_names": "M.", 
      "full_name": "Corvino, M."
    }, 
    {
      "raw_name": "F. Costantini", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Costantini", 
      "given_names": "F.", 
      "full_name": "Costantini, F."
    }, 
    {
      "raw_name": "A. Cotta Ramusino", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Cotta Ramusino", 
      "given_names": "A.", 
      "full_name": "Cotta Ramusino, A."
    }, 
    {
      "raw_name": "D. Coward", 
      "affiliations": [
        {
          "country": "USA", 
          "value": "George Mason University, Fairfax, Virginia 22030, USA"
        }
      ], 
      "surname": "Coward", 
      "given_names": "D.", 
      "full_name": "Coward, D."
    }, 
    {
      "raw_name": "G. D\u2019Agostini", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma e INFN, Sezione di Roma I, I-00185 Roma, Italy"
        }
      ], 
      "surname": "D\u2019Agostini", 
      "given_names": "G.", 
      "full_name": "D\u2019Agostini, G."
    }, 
    {
      "raw_name": "J.\u2009B. Dainton", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Lancaster, Lancaster LA1 4YW, United Kingdom"
        }
      ], 
      "surname": "Dainton", 
      "given_names": "J.\u2009B.", 
      "full_name": "Dainton, J.\u2009B."
    }, 
    {
      "raw_name": "P. Dalpiaz", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Scienze della Terra dell\u2019Universit\u00e0 e INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Dalpiaz", 
      "given_names": "P.", 
      "full_name": "Dalpiaz, P."
    }, 
    {
      "raw_name": "H. Danielsson", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Danielsson", 
      "given_names": "H.", 
      "full_name": "Danielsson, H."
    }, 
    {
      "raw_name": "N. De Simone", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "De Simone", 
      "given_names": "N.", 
      "full_name": "De Simone, N."
    }, 
    {
      "raw_name": "D. Di Filippo", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Di Filippo", 
      "given_names": "D.", 
      "full_name": "Di Filippo, D."
    }, 
    {
      "raw_name": "L. Di Lella", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Di Lella", 
      "given_names": "L.", 
      "full_name": "Di Lella, L."
    }, 
    {
      "raw_name": "N. Doble", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Doble", 
      "given_names": "N.", 
      "full_name": "Doble, N."
    }, 
    {
      "raw_name": "V. Duk", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Duk", 
      "given_names": "V.", 
      "full_name": "Duk, V."
    }, 
    {
      "raw_name": "F. Duval", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Duval", 
      "given_names": "F.", 
      "full_name": "Duval, F."
    }, 
    {
      "raw_name": "B. D\u00f6brich", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "D\u00f6brich", 
      "given_names": "B.", 
      "full_name": "D\u00f6brich, B."
    }, 
    {
      "raw_name": "D. Emelyanov", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Emelyanov", 
      "given_names": "D.", 
      "full_name": "Emelyanov, D."
    }, 
    {
      "raw_name": "J. Engelfried", 
      "affiliations": [
        {
          "country": "Mexico", 
          "value": "Instituto de F\u00edsica, Universidad Aut\u00f3noma de San Luis Potos\u00ed, 78240 San Luis Potos\u00ed, Mexico"
        }
      ], 
      "surname": "Engelfried", 
      "given_names": "J.", 
      "full_name": "Engelfried, J."
    }, 
    {
      "raw_name": "T. Enik", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Enik", 
      "given_names": "T.", 
      "full_name": "Enik, T."
    }, 
    {
      "raw_name": "N. Estrada-Tristan", 
      "affiliations": [
        {
          "country": "Mexico", 
          "value": "Instituto de F\u00edsica, Universidad Aut\u00f3noma de San Luis Potos\u00ed, 78240 San Luis Potos\u00ed, Mexico"
        }
      ], 
      "surname": "Estrada-Tristan", 
      "given_names": "N.", 
      "full_name": "Estrada-Tristan, N."
    }, 
    {
      "raw_name": "V. Falaleev", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Falaleev", 
      "given_names": "V.", 
      "full_name": "Falaleev, V."
    }, 
    {
      "raw_name": "R. Fantechi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Fantechi", 
      "given_names": "R.", 
      "full_name": "Fantechi, R."
    }, 
    {
      "raw_name": "V. Fascianelli", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Fascianelli", 
      "given_names": "V.", 
      "full_name": "Fascianelli, V."
    }, 
    {
      "raw_name": "L. Federici", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Federici", 
      "given_names": "L.", 
      "full_name": "Federici, L."
    }, 
    {
      "raw_name": "S. Fedotov", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia"
        }
      ], 
      "surname": "Fedotov", 
      "given_names": "S.", 
      "full_name": "Fedotov, S."
    }, 
    {
      "raw_name": "A. Filippi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Filippi", 
      "given_names": "A.", 
      "full_name": "Filippi, A."
    }, 
    {
      "raw_name": "M. Fiorini", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Scienze della Terra dell\u2019Universit\u00e0 e INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Fiorini", 
      "given_names": "M.", 
      "full_name": "Fiorini, M."
    }, 
    {
      "raw_name": "J.\u2009R. Fry", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Fry", 
      "given_names": "J.\u2009R.", 
      "full_name": "Fry, J.\u2009R."
    }, 
    {
      "raw_name": "J. Fu", 
      "affiliations": [
        {
          "country": "Canada", 
          "value": "University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada"
        }
      ], 
      "surname": "Fu", 
      "given_names": "J.", 
      "full_name": "Fu, J."
    }, 
    {
      "raw_name": "A. Fucci", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy"
        }
      ], 
      "surname": "Fucci", 
      "given_names": "A.", 
      "full_name": "Fucci, A."
    }, 
    {
      "raw_name": "L. Fulton", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Liverpool, Liverpool L69 7ZE, United Kingdom"
        }
      ], 
      "surname": "Fulton", 
      "given_names": "L.", 
      "full_name": "Fulton, L."
    }, 
    {
      "raw_name": "E. Gamberini", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Gamberini", 
      "given_names": "E.", 
      "full_name": "Gamberini, E."
    }, 
    {
      "raw_name": "L. Gatignon", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Gatignon", 
      "given_names": "L.", 
      "full_name": "Gatignon, L."
    }, 
    {
      "raw_name": "G. Georgiev", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Laboratori Nazionali di Frascati, I-00044 Frascati, Italy"
        }
      ], 
      "surname": "Georgiev", 
      "given_names": "G.", 
      "full_name": "Georgiev, G."
    }, 
    {
      "raw_name": "S.\u2009A. Ghinescu", 
      "affiliations": [
        {
          "country": "Romania", 
          "value": "Horia Hulubei National Institute of Physics for R&D in Physics and Nuclear Engineering, 077125 Bucharest-Magurele, Romania"
        }
      ], 
      "surname": "Ghinescu", 
      "given_names": "S.\u2009A.", 
      "full_name": "Ghinescu, S.\u2009A."
    }, 
    {
      "raw_name": "A. Gianoli", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Gianoli", 
      "given_names": "A.", 
      "full_name": "Gianoli, A."
    }, 
    {
      "raw_name": "M. Giorgi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Giorgi", 
      "given_names": "M.", 
      "full_name": "Giorgi, M."
    }, 
    {
      "raw_name": "S. Giudici", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Giudici", 
      "given_names": "S.", 
      "full_name": "Giudici, S."
    }, 
    {
      "raw_name": "F. Gonnella", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Gonnella", 
      "given_names": "F.", 
      "full_name": "Gonnella, F."
    }, 
    {
      "raw_name": "E. Goudzovski", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Goudzovski", 
      "given_names": "E.", 
      "full_name": "Goudzovski, E."
    }, 
    {
      "raw_name": "C. Graham", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Glasgow, Glasgow G12 8QQ, United Kingdom"
        }
      ], 
      "surname": "Graham", 
      "given_names": "C.", 
      "full_name": "Graham, C."
    }, 
    {
      "raw_name": "R. Guida", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Guida", 
      "given_names": "R.", 
      "full_name": "Guida, R."
    }, 
    {
      "raw_name": "E. Gushchin", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia"
        }
      ], 
      "surname": "Gushchin", 
      "given_names": "E.", 
      "full_name": "Gushchin, E."
    }, 
    {
      "raw_name": "F. Hahn", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Hahn", 
      "given_names": "F.", 
      "full_name": "Hahn, F."
    }, 
    {
      "raw_name": "H. Heath", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Bristol, Bristol BS8 1TH, United Kingdom"
        }
      ], 
      "surname": "Heath", 
      "given_names": "H.", 
      "full_name": "Heath, H."
    }, 
    {
      "raw_name": "J. Henshaw", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Henshaw", 
      "given_names": "J.", 
      "full_name": "Henshaw, J."
    }, 
    {
      "raw_name": "E.\u2009B. Holzer", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Holzer", 
      "given_names": "E.\u2009B.", 
      "full_name": "Holzer, E.\u2009B."
    }, 
    {
      "raw_name": "T. Husek", 
      "affiliations": [
        {
          "country": "Czech Republic", 
          "value": "Charles University, 116 36 Prague 1, Czech Republic"
        }
      ], 
      "surname": "Husek", 
      "given_names": "T.", 
      "full_name": "Husek, T."
    }, 
    {
      "raw_name": "O.\u2009E. Hutanu", 
      "affiliations": [
        {
          "country": "Romania", 
          "value": "Horia Hulubei National Institute of Physics for R&D in Physics and Nuclear Engineering, 077125 Bucharest-Magurele, Romania"
        }
      ], 
      "surname": "Hutanu", 
      "given_names": "O.\u2009E.", 
      "full_name": "Hutanu, O.\u2009E."
    }, 
    {
      "raw_name": "D. Hutchcroft", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Liverpool, Liverpool L69 7ZE, United Kingdom"
        }
      ], 
      "surname": "Hutchcroft", 
      "given_names": "D.", 
      "full_name": "Hutchcroft, D."
    }, 
    {
      "raw_name": "L. Iacobuzio", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Iacobuzio", 
      "given_names": "L.", 
      "full_name": "Iacobuzio, L."
    }, 
    {
      "raw_name": "E. Iacopini", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Astronomia dell\u2019Universit\u00e0 e INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Italy"
        }
      ], 
      "surname": "Iacopini", 
      "given_names": "E.", 
      "full_name": "Iacopini, E."
    }, 
    {
      "raw_name": "E. Imbergamo", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Geologia dell\u2019Universit\u00e0 e INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Imbergamo", 
      "given_names": "E.", 
      "full_name": "Imbergamo, E."
    }, 
    {
      "raw_name": "B. Jenninger", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Jenninger", 
      "given_names": "B.", 
      "full_name": "Jenninger, B."
    }, 
    {
      "raw_name": "J. Jerhot", 
      "affiliations": [
        {
          "country": "Czech Republic", 
          "value": "Charles University, 116 36 Prague 1, Czech Republic"
        }
      ], 
      "surname": "Jerhot", 
      "given_names": "J.", 
      "full_name": "Jerhot, J."
    }, 
    {
      "raw_name": "R.\u2009W.\u2009L. Jones", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Lancaster, Lancaster LA1 4YW, United Kingdom"
        }
      ], 
      "surname": "Jones", 
      "given_names": "R.\u2009W.\u2009L.", 
      "full_name": "Jones, R.\u2009W.\u2009L."
    }, 
    {
      "raw_name": "K. Kampf", 
      "affiliations": [
        {
          "country": "Czech Republic", 
          "value": "Charles University, 116 36 Prague 1, Czech Republic"
        }
      ], 
      "surname": "Kampf", 
      "given_names": "K.", 
      "full_name": "Kampf, K."
    }, 
    {
      "raw_name": "V. Kekelidze", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Kekelidze", 
      "given_names": "V.", 
      "full_name": "Kekelidze, V."
    }, 
    {
      "raw_name": "S. Kholodenko", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for High Energy Physics\u2014State Research Center of Russian Federation, 142281 Protvino (MO), Russia"
        }
      ], 
      "surname": "Kholodenko", 
      "given_names": "S.", 
      "full_name": "Kholodenko, S."
    }, 
    {
      "raw_name": "G. Khoriauli", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik and PRISMA Cluster of Excellence, Universit\u00e4t Mainz, D-55099 Mainz, Germany"
        }
      ], 
      "surname": "Khoriauli", 
      "given_names": "G.", 
      "full_name": "Khoriauli, G."
    }, 
    {
      "raw_name": "A. Khotyantsev", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia"
        }
      ], 
      "surname": "Khotyantsev", 
      "given_names": "A.", 
      "full_name": "Khotyantsev, A."
    }, 
    {
      "raw_name": "A. Kleimenova", 
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Universit\u00e9 Catholique de Louvain, B-1348 Louvain-La-Neuve, Belgium"
        }
      ], 
      "surname": "Kleimenova", 
      "given_names": "A.", 
      "full_name": "Kleimenova, A."
    }, 
    {
      "raw_name": "A. Korotkova", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Korotkova", 
      "given_names": "A.", 
      "full_name": "Korotkova, A."
    }, 
    {
      "raw_name": "M. Koval", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Koval", 
      "given_names": "M.", 
      "full_name": "Koval, M."
    }, 
    {
      "raw_name": "V. Kozhuharov", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Laboratori Nazionali di Frascati, I-00044 Frascati, Italy"
        }
      ], 
      "surname": "Kozhuharov", 
      "given_names": "V.", 
      "full_name": "Kozhuharov, V."
    }, 
    {
      "raw_name": "Z. Kucerova", 
      "affiliations": [
        {
          "country": "Slovakia", 
          "value": "Faculty of Mathematics, Physics and Informatics, Comenius University, 842 48 Bratislava, Slovakia"
        }
      ], 
      "surname": "Kucerova", 
      "given_names": "Z.", 
      "full_name": "Kucerova, Z."
    }, 
    {
      "raw_name": "Y. Kudenko", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia"
        }
      ], 
      "surname": "Kudenko", 
      "given_names": "Y.", 
      "full_name": "Kudenko, Y."
    }, 
    {
      "raw_name": "J. Kunze", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik and PRISMA Cluster of Excellence, Universit\u00e4t Mainz, D-55099 Mainz, Germany"
        }
      ], 
      "surname": "Kunze", 
      "given_names": "J.", 
      "full_name": "Kunze, J."
    }, 
    {
      "raw_name": "V. Kurochka", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia"
        }
      ], 
      "surname": "Kurochka", 
      "given_names": "V.", 
      "full_name": "Kurochka, V."
    }, 
    {
      "raw_name": "V. Kurshetsov", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for High Energy Physics\u2014State Research Center of Russian Federation, 142281 Protvino (MO), Russia"
        }
      ], 
      "surname": "Kurshetsov", 
      "given_names": "V.", 
      "full_name": "Kurshetsov, V."
    }, 
    {
      "raw_name": "G. Lamanna", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Lamanna", 
      "given_names": "G.", 
      "full_name": "Lamanna, G."
    }, 
    {
      "raw_name": "G. Lanfranchi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Laboratori Nazionali di Frascati, I-00044 Frascati, Italy"
        }
      ], 
      "surname": "Lanfranchi", 
      "given_names": "G.", 
      "full_name": "Lanfranchi, G."
    }, 
    {
      "raw_name": "E. Lari", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Lari", 
      "given_names": "E.", 
      "full_name": "Lari, E."
    }, 
    {
      "raw_name": "G. Latino", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Astronomia dell\u2019Universit\u00e0 e INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Italy"
        }
      ], 
      "surname": "Latino", 
      "given_names": "G.", 
      "full_name": "Latino, G."
    }, 
    {
      "raw_name": "P. Laycock", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Laycock", 
      "given_names": "P.", 
      "full_name": "Laycock, P."
    }, 
    {
      "raw_name": "C. Lazzeroni", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Lazzeroni", 
      "given_names": "C.", 
      "full_name": "Lazzeroni, C."
    }, 
    {
      "raw_name": "G. Lehmann Miotto", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Lehmann Miotto", 
      "given_names": "G.", 
      "full_name": "Lehmann Miotto, G."
    }, 
    {
      "raw_name": "M. Lenti", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Astronomia dell\u2019Universit\u00e0 e INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Italy"
        }
      ], 
      "surname": "Lenti", 
      "given_names": "M.", 
      "full_name": "Lenti, M."
    }, 
    {
      "raw_name": "E. Leonardi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma I, I-00185 Roma, Italy"
        }
      ], 
      "surname": "Leonardi", 
      "given_names": "E.", 
      "full_name": "Leonardi, E."
    }, 
    {
      "raw_name": "P. Lichard", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Lichard", 
      "given_names": "P.", 
      "full_name": "Lichard, P."
    }, 
    {
      "raw_name": "L. Litov", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Litov", 
      "given_names": "L.", 
      "full_name": "Litov, L."
    }, 
    {
      "raw_name": "R. Lollini", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Geologia dell\u2019Universit\u00e0 e INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Lollini", 
      "given_names": "R.", 
      "full_name": "Lollini, R."
    }, 
    {
      "raw_name": "D. Lomidze", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik and PRISMA Cluster of Excellence, Universit\u00e4t Mainz, D-55099 Mainz, Germany"
        }
      ], 
      "surname": "Lomidze", 
      "given_names": "D.", 
      "full_name": "Lomidze, D."
    }, 
    {
      "raw_name": "A. Lonardo", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma I, I-00185 Roma, Italy"
        }
      ], 
      "surname": "Lonardo", 
      "given_names": "A.", 
      "full_name": "Lonardo, A."
    }, 
    {
      "raw_name": "P. Lubrano", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Lubrano", 
      "given_names": "P.", 
      "full_name": "Lubrano, P."
    }, 
    {
      "raw_name": "M. Lupi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Lupi", 
      "given_names": "M.", 
      "full_name": "Lupi, M."
    }, 
    {
      "raw_name": "N. Lurkin", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Lurkin", 
      "given_names": "N.", 
      "full_name": "Lurkin, N."
    }, 
    {
      "raw_name": "D. Madigozhin", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Madigozhin", 
      "given_names": "D.", 
      "full_name": "Madigozhin, D."
    }, 
    {
      "raw_name": "I. Mannelli", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Scuola Normale Superiore e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Mannelli", 
      "given_names": "I.", 
      "full_name": "Mannelli, I."
    }, 
    {
      "raw_name": "A. Mapelli", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Mapelli", 
      "given_names": "A.", 
      "full_name": "Mapelli, A."
    }, 
    {
      "raw_name": "F. Marchetto", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Marchetto", 
      "given_names": "F.", 
      "full_name": "Marchetto, F."
    }, 
    {
      "raw_name": "R. Marchevski", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Marchevski", 
      "given_names": "R.", 
      "full_name": "Marchevski, R."
    }, 
    {
      "raw_name": "S. Martellotti", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Laboratori Nazionali di Frascati, I-00044 Frascati, Italy"
        }
      ], 
      "surname": "Martellotti", 
      "given_names": "S.", 
      "full_name": "Martellotti, S."
    }, 
    {
      "raw_name": "P. Massarotti", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Massarotti", 
      "given_names": "P.", 
      "full_name": "Massarotti, P."
    }, 
    {
      "raw_name": "K. Massri", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Massri", 
      "given_names": "K.", 
      "full_name": "Massri, K."
    }, 
    {
      "raw_name": "E. Maurice", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Liverpool, Liverpool L69 7ZE, United Kingdom"
        }
      ], 
      "surname": "Maurice", 
      "given_names": "E.", 
      "full_name": "Maurice, E."
    }, 
    {
      "raw_name": "M. Medvedeva", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia"
        }
      ], 
      "surname": "Medvedeva", 
      "given_names": "M.", 
      "full_name": "Medvedeva, M."
    }, 
    {
      "raw_name": "A. Mefodev", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for Nuclear Research of the Russian Academy of Sciences, 117312 Moscow, Russia"
        }
      ], 
      "surname": "Mefodev", 
      "given_names": "A.", 
      "full_name": "Mefodev, A."
    }, 
    {
      "raw_name": "E. Menichetti", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Menichetti", 
      "given_names": "E.", 
      "full_name": "Menichetti, E."
    }, 
    {
      "raw_name": "E. Migliore", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Migliore", 
      "given_names": "E.", 
      "full_name": "Migliore, E."
    }, 
    {
      "raw_name": "E. Minucci", 
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Universit\u00e9 Catholique de Louvain, B-1348 Louvain-La-Neuve, Belgium"
        }
      ], 
      "surname": "Minucci", 
      "given_names": "E.", 
      "full_name": "Minucci, E."
    }, 
    {
      "raw_name": "M. Mirra", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Mirra", 
      "given_names": "M.", 
      "full_name": "Mirra, M."
    }, 
    {
      "raw_name": "M. Misheva", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Misheva", 
      "given_names": "M.", 
      "full_name": "Misheva, M."
    }, 
    {
      "raw_name": "N. Molokanova", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Molokanova", 
      "given_names": "N.", 
      "full_name": "Molokanova, N."
    }, 
    {
      "raw_name": "M. Moulson", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Laboratori Nazionali di Frascati, I-00044 Frascati, Italy"
        }
      ], 
      "surname": "Moulson", 
      "given_names": "M.", 
      "full_name": "Moulson, M."
    }, 
    {
      "raw_name": "S. Movchan", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Movchan", 
      "given_names": "S.", 
      "full_name": "Movchan, S."
    }, 
    {
      "raw_name": "M. Napolitano", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Napolitano", 
      "given_names": "M.", 
      "full_name": "Napolitano, M."
    }, 
    {
      "raw_name": "I. Neri", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Scienze della Terra dell\u2019Universit\u00e0 e INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Neri", 
      "given_names": "I.", 
      "full_name": "Neri, I."
    }, 
    {
      "raw_name": "F. Newson", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Newson", 
      "given_names": "F.", 
      "full_name": "Newson, F."
    }, 
    {
      "raw_name": "A. Norton", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Scienze della Terra dell\u2019Universit\u00e0 e INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Norton", 
      "given_names": "A.", 
      "full_name": "Norton, A."
    }, 
    {
      "raw_name": "M. Noy", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Noy", 
      "given_names": "M.", 
      "full_name": "Noy, M."
    }, 
    {
      "raw_name": "T. Numao", 
      "affiliations": [
        {
          "country": "Canada", 
          "value": "TRIUMF, Vancouver, British Columbia V6T 2A3, Canada"
        }
      ], 
      "surname": "Numao", 
      "given_names": "T.", 
      "full_name": "Numao, T."
    }, 
    {
      "raw_name": "V. Obraztsov", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for High Energy Physics\u2014State Research Center of Russian Federation, 142281 Protvino (MO), Russia"
        }
      ], 
      "surname": "Obraztsov", 
      "given_names": "V.", 
      "full_name": "Obraztsov, V."
    }, 
    {
      "raw_name": "A. Ostankov", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for High Energy Physics\u2014State Research Center of Russian Federation, 142281 Protvino (MO), Russia"
        }
      ], 
      "surname": "Ostankov", 
      "given_names": "A.", 
      "full_name": "Ostankov, A."
    }, 
    {
      "raw_name": "S. Padolski", 
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Universit\u00e9 Catholique de Louvain, B-1348 Louvain-La-Neuve, Belgium"
        }
      ], 
      "surname": "Padolski", 
      "given_names": "S.", 
      "full_name": "Padolski, S."
    }, 
    {
      "raw_name": "R. Page", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Bristol, Bristol BS8 1TH, United Kingdom"
        }
      ], 
      "surname": "Page", 
      "given_names": "R.", 
      "full_name": "Page, R."
    }, 
    {
      "raw_name": "V. Palladino", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Palladino", 
      "given_names": "V.", 
      "full_name": "Palladino, V."
    }, 
    {
      "raw_name": "A. Parenti", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Astronomia dell\u2019Universit\u00e0 e INFN, Sezione di Firenze, I-50019 Sesto Fiorentino, Italy"
        }
      ], 
      "surname": "Parenti", 
      "given_names": "A.", 
      "full_name": "Parenti, A."
    }, 
    {
      "raw_name": "C. Parkinson", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Parkinson", 
      "given_names": "C.", 
      "full_name": "Parkinson, C."
    }, 
    {
      "raw_name": "E. Pedreschi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Pedreschi", 
      "given_names": "E.", 
      "full_name": "Pedreschi, E."
    }, 
    {
      "raw_name": "M. Pepe", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Pepe", 
      "given_names": "M.", 
      "full_name": "Pepe, M."
    }, 
    {
      "raw_name": "M. Perrin-Terrin", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Perrin-Terrin", 
      "given_names": "M.", 
      "full_name": "Perrin-Terrin, M."
    }, 
    {
      "raw_name": "L. Peruzzo", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik and PRISMA Cluster of Excellence, Universit\u00e4t Mainz, D-55099 Mainz, Germany"
        }
      ], 
      "surname": "Peruzzo", 
      "given_names": "L.", 
      "full_name": "Peruzzo, L."
    }, 
    {
      "raw_name": "P. Petrov", 
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Universit\u00e9 Catholique de Louvain, B-1348 Louvain-La-Neuve, Belgium"
        }
      ], 
      "surname": "Petrov", 
      "given_names": "P.", 
      "full_name": "Petrov, P."
    }, 
    {
      "raw_name": "Y. Petrov", 
      "affiliations": [
        {
          "country": "Canada", 
          "value": "TRIUMF, Vancouver, British Columbia V6T 2A3, Canada"
        }
      ], 
      "surname": "Petrov", 
      "given_names": "Y.", 
      "full_name": "Petrov, Y."
    }, 
    {
      "raw_name": "F. Petrucci", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Scienze della Terra dell\u2019Universit\u00e0 e INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Petrucci", 
      "given_names": "F.", 
      "full_name": "Petrucci, F."
    }, 
    {
      "raw_name": "R. Piandani", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Geologia dell\u2019Universit\u00e0 e INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Piandani", 
      "given_names": "R.", 
      "full_name": "Piandani, R."
    }, 
    {
      "raw_name": "M. Piccini", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Piccini", 
      "given_names": "M.", 
      "full_name": "Piccini, M."
    }, 
    {
      "raw_name": "J. Pinzino", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Pinzino", 
      "given_names": "J.", 
      "full_name": "Pinzino, J."
    }, 
    {
      "raw_name": "I. Polenkevich", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Polenkevich", 
      "given_names": "I.", 
      "full_name": "Polenkevich, I."
    }, 
    {
      "raw_name": "L. Pontisso", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Pontisso", 
      "given_names": "L.", 
      "full_name": "Pontisso, L."
    }, 
    {
      "raw_name": "Yu. Potrebenikov", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Potrebenikov", 
      "given_names": "Yu.", 
      "full_name": "Potrebenikov, Yu."
    }, 
    {
      "raw_name": "D. Protopopescu", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Glasgow, Glasgow G12 8QQ, United Kingdom"
        }
      ], 
      "surname": "Protopopescu", 
      "given_names": "D.", 
      "full_name": "Protopopescu, D."
    }, 
    {
      "raw_name": "M. Raggi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica, Sapienza Universit\u00e0 di Roma e INFN, Sezione di Roma I, I-00185 Roma, Italy"
        }
      ], 
      "surname": "Raggi", 
      "given_names": "M.", 
      "full_name": "Raggi, M."
    }, 
    {
      "raw_name": "A. Romano", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Romano", 
      "given_names": "A.", 
      "full_name": "Romano, A."
    }, 
    {
      "raw_name": "P. Rubin", 
      "affiliations": [
        {
          "country": "USA", 
          "value": "George Mason University, Fairfax, Virginia 22030, USA"
        }
      ], 
      "surname": "Rubin", 
      "given_names": "P.", 
      "full_name": "Rubin, P."
    }, 
    {
      "raw_name": "G. Ruggiero", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Lancaster, Lancaster LA1 4YW, United Kingdom"
        }
      ], 
      "surname": "Ruggiero", 
      "given_names": "G.", 
      "full_name": "Ruggiero, G."
    }, 
    {
      "raw_name": "V. Ryjov", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Ryjov", 
      "given_names": "V.", 
      "full_name": "Ryjov, V."
    }, 
    {
      "raw_name": "A. Salamon", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy"
        }
      ], 
      "surname": "Salamon", 
      "given_names": "A.", 
      "full_name": "Salamon, A."
    }, 
    {
      "raw_name": "C. Santoni", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Geologia dell\u2019Universit\u00e0 e INFN, Sezione di Perugia, I-06100 Perugia, Italy"
        }
      ], 
      "surname": "Santoni", 
      "given_names": "C.", 
      "full_name": "Santoni, C."
    }, 
    {
      "raw_name": "G. Saracino", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica \u201cEttore Pancini\u201d e INFN, Sezione di Napoli, I-80126 Napoli, Italy"
        }
      ], 
      "surname": "Saracino", 
      "given_names": "G.", 
      "full_name": "Saracino, G."
    }, 
    {
      "raw_name": "F. Sargeni", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma Tor Vergata, I-00133 Roma, Italy"
        }
      ], 
      "surname": "Sargeni", 
      "given_names": "F.", 
      "full_name": "Sargeni, F."
    }, 
    {
      "raw_name": "S. Schuchmann", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Schuchmann", 
      "given_names": "S.", 
      "full_name": "Schuchmann, S."
    }, 
    {
      "raw_name": "V. Semenov", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for High Energy Physics\u2014State Research Center of Russian Federation, 142281 Protvino (MO), Russia"
        }
      ], 
      "surname": "Semenov", 
      "given_names": "V.", 
      "full_name": "Semenov, V."
    }, 
    {
      "raw_name": "A. Sergi", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Sergi", 
      "given_names": "A.", 
      "full_name": "Sergi, A."
    }, 
    {
      "raw_name": "A. Shaikhiev", 
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Universit\u00e9 Catholique de Louvain, B-1348 Louvain-La-Neuve, Belgium"
        }
      ], 
      "surname": "Shaikhiev", 
      "given_names": "A.", 
      "full_name": "Shaikhiev, A."
    }, 
    {
      "raw_name": "S. Shkarovskiy", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Shkarovskiy", 
      "given_names": "S.", 
      "full_name": "Shkarovskiy, S."
    }, 
    {
      "raw_name": "D. Soldi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Torino, I-10125 Torino, Italy"
        }
      ], 
      "surname": "Soldi", 
      "given_names": "D.", 
      "full_name": "Soldi, D."
    }, 
    {
      "raw_name": "M. Sozzi", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica dell\u2019Universit\u00e0 e INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Sozzi", 
      "given_names": "M.", 
      "full_name": "Sozzi, M."
    }, 
    {
      "raw_name": "T. Spadaro", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Laboratori Nazionali di Frascati, I-00044 Frascati, Italy"
        }
      ], 
      "surname": "Spadaro", 
      "given_names": "T.", 
      "full_name": "Spadaro, T."
    }, 
    {
      "raw_name": "F. Spinella", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Pisa, I-56100 Pisa, Italy"
        }
      ], 
      "surname": "Spinella", 
      "given_names": "F.", 
      "full_name": "Spinella, F."
    }, 
    {
      "raw_name": "A. Sturgess", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Sturgess", 
      "given_names": "A.", 
      "full_name": "Sturgess, A."
    }, 
    {
      "raw_name": "V. Sugonyaev", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for High Energy Physics\u2014State Research Center of Russian Federation, 142281 Protvino (MO), Russia"
        }
      ], 
      "surname": "Sugonyaev", 
      "given_names": "V.", 
      "full_name": "Sugonyaev, V."
    }, 
    {
      "raw_name": "J. Swallow", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom"
        }
      ], 
      "surname": "Swallow", 
      "given_names": "J.", 
      "full_name": "Swallow, J."
    }, 
    {
      "raw_name": "S. Trilov", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Bristol, Bristol BS8 1TH, United Kingdom"
        }
      ], 
      "surname": "Trilov", 
      "given_names": "S.", 
      "full_name": "Trilov, S."
    }, 
    {
      "raw_name": "P. Valente", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma I, I-00185 Roma, Italy"
        }
      ], 
      "surname": "Valente", 
      "given_names": "P.", 
      "full_name": "Valente, P."
    }, 
    {
      "raw_name": "B. Velghe", 
      "affiliations": [
        {
          "country": "Canada", 
          "value": "TRIUMF, Vancouver, British Columbia V6T 2A3, Canada"
        }
      ], 
      "surname": "Velghe", 
      "given_names": "B.", 
      "full_name": "Velghe, B."
    }, 
    {
      "raw_name": "S. Venditti", 
      "affiliations": [
        {
          "country": "CERN", 
          "value": "CERN, European Organization for Nuclear Research, CH-1211 Geneva 23, Switzerland"
        }
      ], 
      "surname": "Venditti", 
      "given_names": "S.", 
      "full_name": "Venditti, S."
    }, 
    {
      "raw_name": "P. Vicini", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "INFN, Sezione di Roma I, I-00185 Roma, Italy"
        }
      ], 
      "surname": "Vicini", 
      "given_names": "P.", 
      "full_name": "Vicini, P."
    }, 
    {
      "raw_name": "R. Volpe", 
      "affiliations": [
        {
          "country": "Belgium", 
          "value": "Universit\u00e9 Catholique de Louvain, B-1348 Louvain-La-Neuve, Belgium"
        }
      ], 
      "surname": "Volpe", 
      "given_names": "R.", 
      "full_name": "Volpe, R."
    }, 
    {
      "raw_name": "M. Vormstein", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik and PRISMA Cluster of Excellence, Universit\u00e4t Mainz, D-55099 Mainz, Germany"
        }
      ], 
      "surname": "Vormstein", 
      "given_names": "M.", 
      "full_name": "Vormstein, M."
    }, 
    {
      "raw_name": "H. Wahl", 
      "affiliations": [
        {
          "country": "Italy", 
          "value": "Dipartimento di Fisica e Scienze della Terra dell\u2019Universit\u00e0 e INFN, Sezione di Ferrara, I-44122 Ferrara, Italy"
        }
      ], 
      "surname": "Wahl", 
      "given_names": "H.", 
      "full_name": "Wahl, H."
    }, 
    {
      "raw_name": "R. Wanke", 
      "affiliations": [
        {
          "country": "Germany", 
          "value": "Institut f\u00fcr Physik and PRISMA Cluster of Excellence, Universit\u00e4t Mainz, D-55099 Mainz, Germany"
        }
      ], 
      "surname": "Wanke", 
      "given_names": "R.", 
      "full_name": "Wanke, R."
    }, 
    {
      "raw_name": "B. Wrona", 
      "affiliations": [
        {
          "country": "UK", 
          "value": "University of Liverpool, Liverpool L69 7ZE, United Kingdom"
        }
      ], 
      "surname": "Wrona", 
      "given_names": "B.", 
      "full_name": "Wrona, B."
    }, 
    {
      "raw_name": "O. Yushchenko", 
      "affiliations": [
        {
          "country": "Russia", 
          "value": "Institute for High Energy Physics\u2014State Research Center of Russian Federation, 142281 Protvino (MO), Russia"
        }
      ], 
      "surname": "Yushchenko", 
      "given_names": "O.", 
      "full_name": "Yushchenko, O."
    }, 
    {
      "raw_name": "M. Zamkovsky", 
      "affiliations": [
        {
          "country": "Czech Republic", 
          "value": "Charles University, 116 36 Prague 1, Czech Republic"
        }
      ], 
      "surname": "Zamkovsky", 
      "given_names": "M.", 
      "full_name": "Zamkovsky, M."
    }, 
    {
      "raw_name": "A. Zinchenko", 
      "affiliations": [
        {
          "country": "JINR", 
          "value": "Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia"
        }
      ], 
      "surname": "Zinchenko", 
      "given_names": "A.", 
      "full_name": "Zinchenko, A."
    }
  ], 
  "titles": [
    {
      "source": "APS", 
      "title": "Search for Lepton Number and Flavor Violation in <math><msup><mi>K</mi><mo>+</mo></msup></math> and <math><msup><mi>\u03c0</mi><mn>0</mn></msup></math> Decays"
    }
  ], 
  "dois": [
    {
      "value": "10.1103/PhysRevLett.127.131802"
    }
  ], 
  "publication_info": [
    {
      "journal_volume": "127", 
      "journal_title": "Physical Review Letters", 
      "material": "article", 
      "journal_issue": "13", 
      "year": 2021
    }
  ], 
  "$schema": "http://repo.scoap3.org/schemas/hep.json", 
  "acquisition_source": {
    "date": "2022-04-05T09:21:24.707692", 
    "source": "APS", 
    "method": "APS", 
    "submission_number": "a0d20d20b4c111ec837fd6d834be26e1"
  }, 
  "page_nr": [
    8
  ], 
  "license": [
    {
      "url": "https://creativecommons.org/licenses/by/4.0/", 
      "license": "CC-BY-4.0"
    }
  ], 
  "copyright": [
    {
      "statement": "Published by the American Physical Society", 
      "year": "2021"
    }
  ], 
  "control_number": "64871", 
  "collaborations": [
    {
      "value": "NA62 Collaboration"
    }
  ], 
  "_files": [
    {
      "checksum": "md5:c5f7a8a3cf92b7f38d30f53f2f417400", 
      "filetype": "pdf", 
      "bucket": "a9e5d880-da11-4ca4-898f-8dd35facccde", 
      "version_id": "dc6b718e-80c2-4d49-8ec9-7125000b783a", 
      "key": "10.1103/PhysRevLett.127.131802.pdf", 
      "size": 458908
    }, 
    {
      "checksum": "md5:b953200422ddf186fb6a9a037650de69", 
      "filetype": "xml", 
      "bucket": "a9e5d880-da11-4ca4-898f-8dd35facccde", 
      "version_id": "50e4726d-c44c-4991-a69a-f04a6bd3c262", 
      "key": "10.1103/PhysRevLett.127.131802.xml", 
      "size": 179132
    }
  ], 
  "record_creation_date": "2021-09-24T14:30:03.730433", 
  "collections": [
    {
      "primary": "HEP"
    }, 
    {
      "primary": "Citeable"
    }, 
    {
      "primary": "Published"
    }
  ], 
  "arxiv_eprints": [
    {
      "categories": [
        "hep-ex"
      ], 
      "value": "2105.06759"
    }
  ], 
  "abstracts": [
    {
      "source": "APS", 
      "value": "Searches for the lepton number violating <math><mrow><msup><mrow><mi>K</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>\u2192</mo><msup><mrow><mi>\u03c0</mi></mrow><mrow><mo>\u2212</mo></mrow></msup><msup><mrow><mi>\u03bc</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math> decay and the lepton flavor violating <math><mrow><msup><mrow><mi>K</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>\u2192</mo><msup><mrow><mi>\u03c0</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>\u03bc</mi></mrow><mrow><mo>\u2212</mo></mrow></msup><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math> and <math><mrow><msup><mrow><mi>\u03c0</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2192</mo><msup><mrow><mi>\u03bc</mi></mrow><mrow><mo>\u2212</mo></mrow></msup><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math> decays are reported using data collected by the NA62 experiment at CERN in 2017\u20132018. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level: <math><mrow><mi>B</mi><mo>(</mo><msup><mrow><mi>K</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>\u2192</mo><msup><mrow><mi>\u03c0</mi></mrow><mrow><mo>\u2212</mo></mrow></msup><msup><mrow><mi>\u03bc</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>)</mo><mo>&lt;</mo><mn>4.2</mn><mo>\u00d7</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>\u2212</mo><mn>11</mn></mrow></msup></mrow></math>, <math><mrow><mi>B</mi><mo>(</mo><msup><mrow><mi>K</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>\u2192</mo><msup><mrow><mi>\u03c0</mi></mrow><mrow><mo>+</mo></mrow></msup><msup><mrow><mi>\u03bc</mi></mrow><mrow><mo>\u2212</mo></mrow></msup><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>)</mo><mo>&lt;</mo><mn>6.6</mn><mo>\u00d7</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>\u2212</mo><mn>11</mn></mrow></msup></mrow></math> and <math><mrow><mi>B</mi><mo>(</mo><msup><mrow><mi>\u03c0</mi></mrow><mrow><mn>0</mn></mrow></msup><mo>\u2192</mo><msup><mrow><mi>\u03bc</mi></mrow><mrow><mo>\u2212</mo></mrow></msup><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup><mo>)</mo><mo>&lt;</mo><mn>3.2</mn><mo>\u00d7</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>\u2212</mo><mn>10</mn></mrow></msup></mrow></math>. These results improve by 1 order of magnitude over previous results for these decay modes."
    }
  ], 
  "imprints": [
    {
      "date": "2021-09-24", 
      "publisher": "APS"
    }
  ]
}
Published on:
24 September 2021
Publisher:
APS
Published in:
Physical Review Letters , Volume 127 (2021)
Issue 13
DOI:
https://doi.org/10.1103/PhysRevLett.127.131802
arXiv:
2105.06759
Copyrights:
Published by the American Physical Society
Licence:
CC-BY-4.0

Fulltext files: