Measurement of Bs0 meson production in pp and PbPb collisions at sNN=5.02 TeV
| dc.citation.firstpage | 168 | |
| dc.citation.journalTitle | Physics Letters B | |
| dc.citation.lastpage | 190 | |
| dc.citation.volumeNumber | 796 | |
| dc.contributor.author | The CMS Collaboration | |
| dc.date.accessioned | 2019-11-05T17:30:05Z | |
| dc.date.available | 2019-11-05T17:30:05Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | The production cross sections of Bs0 mesons and charge conjugates are measured in proton-proton (pp) and PbPb collisions via the exclusive decay channel Bs0→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 Bs0 mesons in the range of 7 to 50 GeV/c and is compared to the predictions of perturbative QCD calculations. The Bs0 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 Bs0 results are consistent with models of strangeness enhancement, and suppression by parton energy loss, as observed for the B+ mesons. | |
| dc.identifier.citation | The CMS Collaboration. "Measurement of Bs0 meson production in pp and PbPb collisions at sNN=5.02 TeV." <i>Physics Letters B,</i> 796, (2019) Elsevier: 168-190. https://doi.org/10.1016/j.physletb.2019.07.014. | |
| dc.identifier.digital | meson-production | |
| dc.identifier.doi | https://doi.org/10.1016/j.physletb.2019.07.014 | |
| dc.identifier.uri | https://hdl.handle.net/1911/107599 | |
| dc.language.iso | eng | |
| dc.publisher | Elsevier | |
| dc.rights | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/). | |
| dc.title | Measurement of Bs0 meson production in pp and PbPb collisions at sNN=5.02 TeV | |
| dc.type | Journal article | |
| dc.type.dcmi | Text | |
| dc.type.publication | publisher version |
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