Szczegóły publikacji
Opis bibliograficzny
Observation of $B^0_s$ mesons and measurement of the $B^0_s/B^+$ yield ratio in PbPb collisions at $\sqrt{s_{NN}}=5.02$ TeV / A. Tumasyan, [et al.], V. AVATI, L. GRZANKA, M. MALAWSKI, [et al.] // Physics Letters. B ; ISSN 0370-2693. — 2022 — vol. 829 art. no. 137062, s. 1–25. — Bibliogr. s. 7–8, Abstr. — Publikacja dostępna online od: 2022-04-04
Autorzy (2365)
- AGHAvati Valentina
- AGHGrzanka Leszek
- AGHMalawski Maciej
- Tumasyan Armen
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 140352 |
|---|---|
| Data dodania do BaDAP | 2022-08-24 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.physletb.2022.137062 |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physics Letters, B |
Abstract
The B 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 and B, in the transverse momentum range 7–50 GeV/c and absolute rapidity 0–2.4. The B 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 and B+ is measured and compared to theoretical models that include quark recombination effects.