Szczegóły publikacji
Opis bibliograficzny
Branching fraction measurements of the rare $B^{0}_{s}\to\phi\mu^{+}\mu^{−}$ and $B^{0}_{s}\to{f'_{2}}(1525)\mu^{+}\mu^{−}$ decays / R. Aaij, [et al.], A. DENDEK, [et al.], M. FIRLEJ, [et al.], T. FIUTOWSKI, [et al.], M. IDZIK, [et al.], P. KOPCIEWICZ, [et al.], W. KRUPA, [et al.], W. KUCEWICZ, [et al.], O. MADEJCZYK, [et al.], M. W. MAJEWSKI, [et al.], J. MOROŃ, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], B. RACHWAŁ, [et al.], J. RYŻKA, [et al.], K. ŚWIENTEK, [et al.], T. SZUMLAK, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2021 — vol. 127 iss. 15 art. no. 151801, s. 151801-1–151801-11. — Bibliogr. s. 151801-5–151801-6. — Publikacja dostępna online od: 2021-10-05. — W. Kucewicz - pierwsza afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
Autorzy (969)
Dane bibliometryczne
| ID BaDAP | 137987 |
|---|---|
| Data dodania do BaDAP | 2021-12-07 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.127.151801 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
The branching fraction of the rare Bs0→φμ+μ- decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb-1, respectively. The branching fraction is reported in intervals of q2, the square of the dimuon invariant mass. In the q2 region between 1.1 and 6.0 GeV2/c4, the measurement is found to lie 3.6 standard deviations below a standard model prediction based on a combination of light cone sum rule and lattice QCD calculations. In addition, the first observation of the rare Bs0→f2′(1525)μ+μ- decay is reported with a statistical significance of 9 standard deviations and its branching fraction is determined.
