Measurement of Bs 0 meson production in pp and PbPb collisions at sNN=5.02 TeV
Authors
Sirunyan, A. M.Tumasyan, A.
Adam, W.
Ambrogi, F.
Asilar, E
Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Đorđević, Miloš
Milošević, Jovan
Contributors
CMS CollaborationCMS Collaboration (ukupan broj autora: 2293)
Article (Published version)
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The production cross sections of Bs 0 mesons and charge conjugates are measured in proton-proton (pp) and PbPb collisions via the exclusive decay channel Bs 0→J/ψϕ→μ+μ−K+K− at a center-of-mass energy of 5.02 TeV per nucleon pair and within the rapidity range |y|<2.4 using the CMS detector at the LHC. The pp measurement is performed as a function of transverse momentum (pT) of the Bs 0 mesons in the range of 7 to 50 GeV/c and is compared to the predictions of perturbative QCD calculations. The Bs 0 production yield in PbPb collisions is measured in two pT intervals, 7 to 15 and 15 to 50 GeV/c, and compared to the yield in pp collisions in the same kinematic region. The nuclear modification factor (RAA) is found to be 1.5±0.6(stat)±0.5(syst) for 7–15 GeV/c, and 0.87±0.30(stat)±0.17(syst) for 15–50 GeV/c, respectively. Within current uncertainties, the Bs 0 results are consistent with models of strangeness enhancement, and suppression by parton energy loss, as observed for the B+ mesons. ...© 2019
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2019, 796, 168-190
DOI: 10.1016/j.physletb.2019.07.014
ISSN: 0370-2693
WoS: 000483426200025
Scopus: 2-s2.0-85069690722
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VinčaTY - JOUR AU - Sirunyan, A. M. AU - Tumasyan, A. AU - Adam, W. AU - Ambrogi, F. AU - Asilar, E AU - Adžić, Petar AU - Ćirković, Predrag AU - Devetak, Damir AU - Đorđević, Miloš AU - Milošević, Jovan PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8416 AB - The production cross sections of Bs 0 mesons and charge conjugates are measured in proton-proton (pp) and PbPb collisions via the exclusive decay channel Bs 0→J/ψϕ→μ+μ−K+K− at a center-of-mass energy of 5.02 TeV per nucleon pair and within the rapidity range |y|<2.4 using the CMS detector at the LHC. The pp measurement is performed as a function of transverse momentum (pT) of the Bs 0 mesons in the range of 7 to 50 GeV/c and is compared to the predictions of perturbative QCD calculations. The Bs 0 production yield in PbPb collisions is measured in two pT intervals, 7 to 15 and 15 to 50 GeV/c, and compared to the yield in pp collisions in the same kinematic region. The nuclear modification factor (RAA) is found to be 1.5±0.6(stat)±0.5(syst) for 7–15 GeV/c, and 0.87±0.30(stat)±0.17(syst) for 15–50 GeV/c, respectively. Within current uncertainties, the Bs 0 results are consistent with models of strangeness enhancement, and suppression by parton energy loss, as observed for the B+ mesons. © 2019 T2 - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics T1 - Measurement of Bs 0 meson production in pp and PbPb collisions at sNN=5.02 TeV VL - 796 SP - 168 EP - 190 DO - 10.1016/j.physletb.2019.07.014 ER -
@article{ author = "Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Asilar, E and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milošević, Jovan", year = "2019", abstract = "The production cross sections of Bs 0 mesons and charge conjugates are measured in proton-proton (pp) and PbPb collisions via the exclusive decay channel Bs 0→J/ψϕ→μ+μ−K+K− at a center-of-mass energy of 5.02 TeV per nucleon pair and within the rapidity range |y|<2.4 using the CMS detector at the LHC. The pp measurement is performed as a function of transverse momentum (pT) of the Bs 0 mesons in the range of 7 to 50 GeV/c and is compared to the predictions of perturbative QCD calculations. The Bs 0 production yield in PbPb collisions is measured in two pT intervals, 7 to 15 and 15 to 50 GeV/c, and compared to the yield in pp collisions in the same kinematic region. The nuclear modification factor (RAA) is found to be 1.5±0.6(stat)±0.5(syst) for 7–15 GeV/c, and 0.87±0.30(stat)±0.17(syst) for 15–50 GeV/c, respectively. Within current uncertainties, the Bs 0 results are consistent with models of strangeness enhancement, and suppression by parton energy loss, as observed for the B+ mesons. © 2019", journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics", title = "Measurement of Bs 0 meson production in pp and PbPb collisions at sNN=5.02 TeV", volume = "796", pages = "168-190", doi = "10.1016/j.physletb.2019.07.014" }
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M.,& Milošević, J.. (2019). Measurement of Bs 0 meson production in pp and PbPb collisions at sNN=5.02 TeV. in Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 796, 168-190. https://doi.org/10.1016/j.physletb.2019.07.014
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Asilar E, Adžić P, Ćirković P, Devetak D, Đorđević M, Milošević J. Measurement of Bs 0 meson production in pp and PbPb collisions at sNN=5.02 TeV. in Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2019;796:168-190. doi:10.1016/j.physletb.2019.07.014 .
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E, Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milošević, Jovan, "Measurement of Bs 0 meson production in pp and PbPb collisions at sNN=5.02 TeV" in Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 796 (2019):168-190, https://doi.org/10.1016/j.physletb.2019.07.014 . .