The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $$\pi ^\pm $$ , $$K^\pm $$ , p and $$\bar{p}$$ produced in $$^{40}\hbox {Ar+}^{45}\hbox {Sc}$$ collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150A $$\text{ Ge }\hspace{-1.00006pt}\text{ V }\!/\!c$$ . The analysis uses the 10% most central collisions, where the observed forward energy defines centrality. The energy dependence of the $$K^\pm $$ / $$\pi ^\pm $$ ratios as well as of inverse slope parameters of the $$K^\pm $$ transverse mass distributions are placed in between those found in inelastic $$p+p$$ and central Pb + Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models.
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Wroc\u0142aw, Poland", "organization": "University of Wroc\u0142aw" } ], "surname": "Naskr\u0119t", "given_names": "M.", "full_name": "Naskr\u0119t, M." }, { "affiliations": [ { "country": "Japan", "value": "Institute for Particle and Nuclear Studies, Tsukuba, Japan", "organization": "Institute for Particle and Nuclear Studies" } ], "surname": "Nishimori", "given_names": "S.", "full_name": "Nishimori, S." }, { "affiliations": [ { "country": "Poland", "value": "Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland", "organization": "Polish Academy of Sciences" } ], "surname": "Ozvenchuk", "given_names": "V.", "full_name": "Ozvenchuk, V." }, { "affiliations": [ { "country": "Poland", "value": "Jan Kochanowski University, Kielce, Poland", "organization": "Jan Kochanowski University" } ], "surname": "Panova", "given_names": "O.", "full_name": "Panova, O." }, { "affiliations": [ { "country": "USA", "value": "University of Pittsburgh, Pittsburgh, USA", "organization": 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"affiliations": [ { "country": "Azerbaijan", "value": "National Nuclear Research Center, Baku, Azerbaijan", "organization": "National Nuclear Research Center" }, { "country": "Poland", "value": "University of Warsaw, Warsaw, Poland", "organization": "University of Warsaw" } ], "surname": "Podlaski", "email": "piotr.podlaski@cern.ch", "full_name": "Podlaski, P.", "given_names": "P." }, { "affiliations": [ { "country": "France", "value": "LPNHE, University of Paris VI and VII, Paris, France", "organization": "University of Paris VI and VII" }, { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Popov", "given_names": "B.", "full_name": "Popov, B." }, { "affiliations": [ { "country": "Hungary", "value": "Wigner Research Centre for Physics, Budapest, Hungary", "organization": "Wigner Research Centre for Physics" }, { "country": "Hungary", "value": "E\u00f6tv\u00f6s Lor\u00e1nd University, Budapest, Hungary", "organization": "E\u00f6tv\u00f6s Lor\u00e1nd University" } ], "surname": "P\u00f3rfy", "given_names": "B.", "full_name": "P\u00f3rfy, B." }, { "affiliations": [ { "country": "Poland", "value": "University of Warsaw, Warsaw, Poland", "organization": "University of Warsaw" } ], "surname": "Posiada\u0142a-Zezula", "given_names": "M.", "full_name": "Posiada\u0142a-Zezula, M." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Prokhorova", "given_names": "D.", "full_name": "Prokhorova, D." }, { "affiliations": [ { "country": "Poland", "value": "National Centre for Nuclear Research, Warsaw, Poland", "organization": "National Centre for Nuclear Research" } ], "surname": "Pszczel", "given_names": "D.", "full_name": "Pszczel, D." }, { "affiliations": [ { "country": "Poland", "value": "University of Silesia, Katowice, Poland", "organization": "University of Silesia" } ], "surname": "Pu\u0142awski", "given_names": "S.", "full_name": "Pu\u0142awski, S." }, { "affiliations": [ { "country": "Serbia", "value": "University of Belgrade, Belgrade, Serbia", "organization": "University of Belgrade" } ], "surname": "Puzovi\u0107", "given_names": "J.", "full_name": "Puzovi\u0107, J." }, { "affiliations": [ { "country": "Poland", "value": "University of Silesia, Katowice, Poland", "organization": "University of Silesia" } ], "surname": "Renfordt", "given_names": "R.", "full_name": "Renfordt, R." }, { "affiliations": [ { "country": "USA", "value": "University of Colorado, Boulder, USA", "organization": "University of Colorado" } ], "surname": "Ren", "given_names": "L.", "full_name": "Ren, L." }, { "affiliations": [ { "country": "Poland", "value": "Jan Kochanowski University, Kielce, Poland", "organization": "Jan Kochanowski University" } ], "surname": "Reyna Ortiz", "given_names": "V.", "full_name": "Reyna Ortiz, V." }, { "affiliations": [ { "country": "Norway", "value": "University of Bergen, Bergen, Norway", "organization": "University of Bergen" } ], "surname": "R\u00f6hrich", "given_names": "D.", "full_name": "R\u00f6hrich, D." }, { "affiliations": [ { "country": "Poland", "value": "National Centre for Nuclear Research, Warsaw, Poland", "organization": "National Centre for Nuclear Research" } ], "surname": "Rondio", "given_names": "E.", "full_name": "Rondio, E." }, { "affiliations": [ { "country": "Germany", "value": "Karlsruhe Institute of Technology, Karlsruhe, Germany", "organization": "Karlsruhe Institute of Technology" } ], "surname": "Roth", "given_names": "M.", "full_name": "Roth, M." }, { "affiliations": [ { "country": "Poland", "value": "Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland", "organization": "Polish Academy of Sciences" } ], "surname": "Rozp\u0142ochowski", "given_names": "\u0141.", "full_name": "Rozp\u0142ochowski, \u0141." }, { "affiliations": [ { "country": "USA", "value": "University of Colorado, Boulder, USA", "organization": "University of Colorado" } ], "surname": "Rumberger", "given_names": "B.", "full_name": "Rumberger, B." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Rumyantsev", "given_names": "M.", "full_name": "Rumyantsev, M." }, { "affiliations": [ { "country": "Azerbaijan", "value": "National Nuclear Research Center, Baku, Azerbaijan", "organization": "National Nuclear Research Center" }, { "country": "Germany", "value": "University of Frankfurt, Frankfurt, Germany", "organization": "University of Frankfurt" } ], "surname": "Rustamov", "given_names": "A.", "full_name": "Rustamov, A." }, { "affiliations": [ { "country": "Poland", "value": "Jan Kochanowski University, Kielce, Poland", "organization": "Jan Kochanowski University" } ], "surname": "Rybczynski", "given_names": "M.", "full_name": "Rybczynski, M." }, { "affiliations": [ { "country": "Poland", "value": "Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland", "organization": "Polish Academy of Sciences" } ], "surname": "Rybicki", "given_names": "A.", "full_name": "Rybicki, A." }, { "affiliations": [ { "country": "Japan", "value": "Institute for Particle and Nuclear Studies, Tsukuba, Japan", "organization": "Institute for Particle and Nuclear Studies" } ], "surname": "Sakashita", "given_names": "K.", "full_name": "Sakashita, K." }, { "affiliations": [ { "country": "Poland", "value": "University of Silesia, Katowice, Poland", "organization": "University of Silesia" } ], "surname": "Schmidt", "given_names": "K.", "full_name": "Schmidt, K." }, { "affiliations": [ { "organization": "Affiliated with 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"organization": "University of Hawaii at Manoa" } ], "surname": "Shukla", "given_names": "A.", "full_name": "Shukla, A." }, { "affiliations": [ { "country": "Poland", "value": "Warsaw University of Technology, Warsaw, Poland", "organization": "Warsaw University of Technology" } ], "surname": "S\u0142odkowski", "given_names": "M.", "full_name": "S\u0142odkowski, M." }, { "affiliations": [ { "country": "Poland", "value": "Jagiellonian University, Cracow, Poland", "organization": "Jagiellonian University" } ], "surname": "Staszel", "given_names": "P.", "full_name": "Staszel, P." }, { "affiliations": [ { "country": "Poland", "value": "Jan Kochanowski University, Kielce, Poland", "organization": "Jan Kochanowski University" } ], "surname": "Stefanek", "given_names": "G.", "full_name": "Stefanek, G." }, { "affiliations": [ { "country": "Poland", "value": "National Centre for Nuclear Research, Warsaw, Poland", "organization": "National Centre for Nuclear Research" } ], "surname": "Stepaniak", "given_names": "J.", "full_name": "Stepaniak, J." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Strikhanov", "given_names": "M.", "full_name": "Strikhanov, M." }, { "affiliations": [ { "country": "Germany", "value": "University of Frankfurt, Frankfurt, Germany", "organization": "University of Frankfurt" } ], "surname": "Str\u00f6bele", "given_names": "H.", "full_name": "Str\u00f6bele, H." }, { "affiliations": [ { "country": "Croatia", "value": "Ru\u0111er Bo\u0161kovi\u0107 Institute, Zagreb, Croatia", "organization": "Ru\u0111er Bo\u0161kovi\u0107 Institute" } ], "surname": "\u0160u\u0161a", "given_names": "T.", "full_name": "\u0160u\u0161a, T." }, { "affiliations": [ { "country": "Poland", "value": "National Centre for Nuclear Research, Warsaw, Poland", "organization": "National Centre 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M." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Valiev", "given_names": "F.", "full_name": "Valiev, F." }, { "affiliations": [ { "country": "Germany", "value": "Karlsruhe Institute of Technology, Karlsruhe, Germany", "organization": "Karlsruhe Institute of Technology" } ], "surname": "Veberi\u010d", "given_names": "D.", "full_name": "Veberi\u010d, D." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Vechernin", "given_names": "V.", "full_name": "Vechernin, V." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Volkov", "given_names": "V.", "full_name": "Volkov, V." }, { "affiliations": [ { "country": "USA", "value": "Fermilab, Batavia, USA", "organization": "Fermilab" } ], "surname": "Wickremasinghe", "given_names": "A.", "full_name": "Wickremasinghe, A." }, { "affiliations": [ { "country": "Poland", "value": "University of Silesia, Katowice, Poland", "organization": "University of Silesia" } ], "surname": "W\u00f3jcik", "given_names": "K.", "full_name": "W\u00f3jcik, K." }, { "affiliations": [ { "country": "Poland", "value": "Jan Kochanowski University, Kielce, Poland", "organization": "Jan Kochanowski University" } ], "surname": "Wyszy\u0144ski", "given_names": "O.", "full_name": "Wyszy\u0144ski, O." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Zaitsev", "given_names": "A.", "full_name": "Zaitsev, A." }, { "affiliations": [ { "country": "USA", "value": "University of Colorado, Boulder, USA", "organization": "University of Colorado" } ], "surname": "Zimmerman", "given_names": "E.", "full_name": "Zimmerman, E." }, { "affiliations": [ { "organization": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN", "value": "Affiliated with an Institution Covered by a Cooperation Agreement with CERN, Geneva, Switzerland" } ], "surname": "Zviagina", "given_names": "A.", "full_name": "Zviagina, A." }, { "affiliations": [ { "country": "USA", "value": "Fermilab, Batavia, USA", "organization": "Fermilab" } ], "surname": "Zwaska", "given_names": "R.", "full_name": "Zwaska, R." } ], "titles": [ { "source": "Springer", "title": "Measurements of $$\\pi ^\\pm $$ <math> <msup> <mi>\u03c0</mi> <mo>\u00b1</mo> </msup> </math> , $$K^\\pm $$ <math> <msup> <mi>K</mi> <mo>\u00b1</mo> </msup> </math> , p and $$\\bar{p}$$ <math> <mover> <mrow> <mi>p</mi> </mrow> <mrow> <mo>\u00af</mo> </mrow> </mover> </math> spectra in $$^{40}\\hbox {Ar+}^{45}\\hbox {Sc}$$ <math> <mrow> <msup> <mrow></mrow> <mn>40</mn> </msup> <msup> <mtext>Ar+</mtext> <mn>45</mn> </msup> <mtext>Sc</mtext> </mrow> </math> collisions at 13A to 150A $$\\text{ Ge }\\hspace{-1.00006pt}\\text{ V }\\!/\\!c$$ <math> <mrow> <mspace width=\"0.333333em\"></mspace> <mtext>Ge</mtext> <mspace width=\"0.333333em\"></mspace> <mspace width=\"-1.00006pt\"></mspace> <mspace width=\"0.333333em\"></mspace> <mtext>V</mtext> <mspace width=\"0.333333em\"></mspace> <mspace width=\"-0.166667em\"></mspace> <mo>/</mo> <mspace width=\"-0.166667em\"></mspace> <mi>c</mi> </mrow> </math>" } ], "dois": [ { "value": "10.1140/epjc/s10052-024-12602-2" } ], "publication_info": [ { "page_end": "54", "journal_title": "European Physical Journal C", "material": "article", "journal_volume": "84", "artid": "s10052-024-12602-2", "year": 2024, "page_start": "1", "journal_issue": "4" } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2024-05-23T03:30:46.626435", "source": "Springer", "method": "Springer", "submission_number": "bc1eb2b418b411efa96f6a3e651b8b98" }, "page_nr": [ 54 ], "license": [ { "url": "https://creativecommons.org/licenses//by/4.0", "license": "CC-BY-4.0" } ], "copyright": [ { "holder": "CERN for the benefit of the NA61/SHINE Collaboration", "year": "2024" } ], "control_number": "84869", "record_creation_date": "2024-04-22T15:30:14.826938", "_files": [ { "checksum": "md5:dfea54539bf37dde571f931ad4891fc5", "filetype": "xml", "bucket": "e7a5db40-7e34-46de-a386-b8ada308d732", "version_id": "747870ce-ef07-451a-9990-4f4cbb4b578b", "key": "10.1140/epjc/s10052-024-12602-2.xml", "size": 91595 }, { "checksum": "md5:1edc5462cb9f10e88089d31b40668c70", "filetype": "pdf/a", "bucket": "e7a5db40-7e34-46de-a386-b8ada308d732", "version_id": "b8f19d31-b63a-4dfd-a9ab-36b958c016b6", "key": "10.1140/epjc/s10052-024-12602-2_a.pdf", "size": 11151823 } ], "collaborations": [ { "value": "NA61/SHINE Collaboration" } ], "collections": [ { "primary": "European Physical Journal C" } ], "abstracts": [ { "source": "Springer", "value": "The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of $$\\pi ^\\pm $$ <math> <msup> <mi>\u03c0</mi> <mo>\u00b1</mo> </msup> </math> , $$K^\\pm $$ <math> <msup> <mi>K</mi> <mo>\u00b1</mo> </msup> </math> , p and $$\\bar{p}$$ <math> <mover> <mrow> <mi>p</mi> </mrow> <mrow> <mo>\u00af</mo> </mrow> </mover> </math> produced in $$^{40}\\hbox {Ar+}^{45}\\hbox {Sc}$$ <math> <mrow> <msup> <mrow></mrow> <mn>40</mn> </msup> <msup> <mtext>Ar+</mtext> <mn>45</mn> </msup> <mtext>Sc</mtext> </mrow> </math> collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150A $$\\text{ Ge }\\hspace{-1.00006pt}\\text{ V }\\!/\\!c$$ <math> <mrow> <mspace width=\"0.333333em\"></mspace> <mtext>Ge</mtext> <mspace width=\"0.333333em\"></mspace> <mspace width=\"-1.00006pt\"></mspace> <mspace width=\"0.333333em\"></mspace> <mtext>V</mtext> <mspace width=\"0.333333em\"></mspace> <mspace width=\"-0.166667em\"></mspace> <mo>/</mo> <mspace width=\"-0.166667em\"></mspace> <mi>c</mi> </mrow> </math> . The analysis uses the 10% most central collisions, where the observed forward energy defines centrality. The energy dependence of the $$K^\\pm $$ <math> <msup> <mi>K</mi> <mo>\u00b1</mo> </msup> </math> / $$\\pi ^\\pm $$ <math> <msup> <mi>\u03c0</mi> <mo>\u00b1</mo> </msup> </math> ratios as well as of inverse slope parameters of the $$K^\\pm $$ <math> <msup> <mi>K</mi> <mo>\u00b1</mo> </msup> </math> transverse mass distributions are placed in between those found in inelastic $$p+p$$ <math> <mrow> <mi>p</mi> <mo>+</mo> <mi>p</mi> </mrow> </math> and central Pb + Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models." } ], "imprints": [ { "date": "2024-04-22", "publisher": "Springer" } ] }