Observation of B-s(0) mesons and measurement of the B-s(0)/B+ yield ratio in PbPb collisions at root S-NN=5.02 TeV
| dc.authorid | 0000-0002-9007-8260 | en_US |
| dc.contributor.author | Yetkin, Elif Aslı | |
| dc.date.accessioned | 2022-12-26T09:04:53Z | |
| dc.date.available | 2022-12-26T09:04:53Z | |
| dc.date.issued | 2022-07-18 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | Abstract: The B-s(0) and B+ production yields are measured in PbPb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV. The data sample, collected with the CMS detector at the LHC, corresponds to an integrated luminosity of 1.7 nb(-1). The mesons are reconstructed in the exclusive decay channels B-s(0) -> J/psi (mu(+)mu(-))phi(K+K-) and B+ -> J/psi(mu(+)mu(-))K+ in the transverse momentum range 7-50 GeV/c and absolute rapidity 0-2.4. The B-s(0) meson is observed with a statistical significance in excess of five standard deviations for the first time in nucleus-nucleus collisions. The measurements are performed as functions of the transverse momentum of the B mesons and of the PbPb collision centrality. The ratio of production yields of B-s(0) and B+ is measured and compared to theoretical models that include quark recombination effects. (C) 2022 The Author(s). Published by Elsevier B.V. | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1016/j.physletb.2022.137062 | |
| dc.identifier.issn | 1873-2445 | |
| dc.identifier.issn | 0370-2693 | |
| dc.identifier.uri | https://hdl.handle.net/11411/4943 | |
| dc.identifier.uri | https://doi.org/10.1016/j.physletb.2022.137062 | |
| dc.identifier.wos | WOS:000821534900017 | en_US |
| dc.identifier.wosquality | N/A | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 100+ | en_US |
| dc.publisher | ELSEVIER | en_US |
| dc.relation.ispartof | PHYSICS LETTERS B | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | CMS | en_US |
| dc.subject | Quark gluon plasma | en_US |
| dc.subject | Heavy flavor | en_US |
| dc.subject | B mesons | en_US |
| dc.subject | Hadronization | en_US |
| dc.title | Observation of B-s(0) mesons and measurement of the B-s(0)/B+ yield ratio in PbPb collisions at root S-NN=5.02 TeV | |
| dc.type | Article | |
| dc.volume | 829 | en_US |
