Szczegóły publikacji
Opis bibliograficzny
Measurement of the $B^{0}_{s} \to \mu^{+}\mu^{-}$ branching fraction search for $B^{0} \to \mu^{+}\mu^{-}$ decays the LHCb experiment / R. Aaij, [et al.], M. IDZIK, [et al.], B. MURYN, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], K. SENDEROWSKA, [et al.], T. SZUMLAK, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2013 — vol. 111 iss. 10, s. 101805-1–101805-9. — Bibliogr. s. 101805-5–101805-6
Autorzy (300)
Dane bibliometryczne
| ID BaDAP | 77659 |
|---|---|
| Data dodania do BaDAP | 2013-11-15 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.111.101805 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Czasopismo/seria | Physical Review Letters |
Abstract
A search for the rare decays B-s(0) -> mu(+)mu(-) and B-0 -> mu(+)mu(-) is performed at the LHCb experiment. The data analyzed correspond to an integrated luminosity of 1 fb(-1) of pp collisions at a center-of-mass energy of 7 TeV and 2 fb(-1) at 8 TeV. An excess of B-s(0) -> mu(+)mu(-) signal candidates with respect to the background expectation is seen with a significance of 4.0 standard deviations. A time-integrated branching fraction of B(B-s(0) -> mu(+)mu(-)) = (2.9(-1.0)(+1.1)) x 10(-9) is obtained and an upper limit of B(B-0 -> mu(+)mu(-)) < 7.4 x 10(-10) at 95% confidence level is set. These results are consistent with the standard model expectations.