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1.
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First Observation of the Radiative Decay
/ Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; Adinolfi, M. ; et al
The radiative decay is observed for the first time using a data sample of proton-proton collisions corresponding to an integrated luminosity of collected by the LHCb experiment at a center-of-mass energy of 13 TeV. [...]
Published in Physical Review Letters 123 (2019)
10.1103/PhysRevLett.123.031801
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2.
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Near-threshold D D ¯ $$ \mathrm{D}\overline{\mathrm{D}} $$ spectroscopy and observation of a new charmonium state
/ Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; Adinolfi, M. ; et al
Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb −1 , collected with the LHCb detector between 2011 and 2018, a new narrow charmonium state, the X(3842) resonance, is observed in the decay modes X 3842 → D 0 D ¯ 0 $$ \mathrm{X}(3842)\to {D}^0{\overline{D}}^0 $$ and X(3842) → D + D − [...]
Published in JHEP 1907 (2019) 035
10.1007/JHEP07(2019)035
arXiv:1903.12240
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Amplitude analysis of the B s 0 → K ∗ 0 K ¯ ∗ 0 $$ {B}_{(s)}^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ decays and measurement of the branching fraction of the B 0 → K ∗ 0 K ¯ ∗ 0 $$ {B}^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ decay
/ Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; Adinolfi, M. ; et al
The B 0 → K ∗ 0 K ¯ ∗ 0 $$ {B}^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ and B s 0 → K ∗ 0 K ¯ ∗ 0 $$ {B}_s^0\to {K}^{\ast 0}{\overline{K}}^{\ast 0} $$ decays are studied using proton-proton collision data corresponding to an integrated luminosity of 3 fb −1 . [...]
Published in JHEP 1907 (2019) 032
10.1007/JHEP07(2019)032
arXiv:1905.06662
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Searches for third-generation scalar leptoquarks in s $$ \sqrt{s} $$ = 13 TeV pp collisions with the ATLAS detector
/ Aaboud, M. ; Aad, G. ; Abbott, B. ; Abbott, D. ; et al
Limits are set on the pair production of scalar leptoquarks, where all possible decays of the leptoquark into a quark ( t , b ) and a lepton ( τ , ν ) of the third generation are considered. [...]
Published in JHEP 1906 (2019) 144
10.1007/JHEP06(2019)144
arXiv:1902.08103
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Amplitude analysis of B s 0 → K S 0 K ± π ∓ decays
/ Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; Adinolfi, M. ; et al
The first untagged decay-time-integrated amplitude analysis of B s 0 → K S 0 K ± π ∓ decays is performed using a sample corresponding to 3.0 fb −1 of pp collision data recorded with the LHCb detector during 2011 and 2012. [...]
Published in JHEP 1906 (2019) 114
10.1007/JHEP06(2019)114
arXiv:1902.07955
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Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at s=13 TeV with the ATLAS detector
/ Aaboud, M. ; Aad, G. ; Abbott, B. ; Abbott, D.C. ; et al
A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. [...]
Published in Physics letters B 795 (2019) 56-75
10.1016/j.physletb.2019.03.067
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Measurement of the Mass Difference Between Neutral Charm-Meson Eigenstates
/ Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; Adinolfi, M. ; et al
We report a measurement of the mass difference between neutral charm-meson eigenstates using a novel approach that enhances sensitivity to this parameter. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.231802
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Combination of Searches for Invisible Higgs Boson Decays with the ATLAS Experiment
/ Aaboud, M. ; Aad, G. ; Abbott, B. ; Abbott, D. C. ; et al
Dark matter particles, if sufficiently light, may be produced in decays of the Higgs boson. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.231801
External links: pdf; xml
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9.
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Observation of an Excited State
/ Aaij, R. ; Abellán Beteta, C. ; Adeva, B. ; Adinolfi, M. ; et al
Using collision data corresponding to an integrated luminosity of recorded by the LHCb experiment at center-of-mass energies of , 8, and 13 TeV, the observation of an excited state in the invariant-mass spectrum is reported. [...]
Published in Physical Review Letters 122 (2019)
10.1103/PhysRevLett.122.232001
External links: pdf; xml
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10.
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Search for long-lived neutral particles in pp collisions at s=13TeV \documentclass[12pt]{minimal}
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\begin{document}$${\sqrt{s}} = 13~{\text { TeV}}$$\end{document} that decay into displaced hadronic jets in the ATLAS calorimeter
/ Aaboud, M. ; Aad, G. ; Abbott, B. ; Abbott, D. C. ; et al
This paper describes a search for pairs of neutral, long-lived particles decaying in the ATLAS calorimeter. [...]
Published in EPJC 79 (2019) 481
10.1140/epjc/s10052-019-6962-6
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