Szczegóły publikacji
Opis bibliograficzny
Search for rare $B^{0}_{(s)}\to \mu^{+}\mu^{-}\mu^{+}\mu^{-}$ decays / 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. 110 iss. 21, s. 211801-1–211801-8. — Bibliogr. s. 211801-5
Autorzy (3000)
Dane bibliometryczne
| ID BaDAP | 75145 |
|---|---|
| Data dodania do BaDAP | 2013-09-12 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.110.211801 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review Letters |
Abstract
A search for the decays B-s(0) -> mu(+)mu(-)mu(+)mu(-) and B-0 -> mu(+)mu(-)mu(+)mu(-) is performed using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected with the LHCb detector in 2011. The number of candidates observed is consistent with the expected background and, assuming phase-space models of the decays, limits on the branching fractions are set: B(B-s(0) -> mu(+)mu(-)mu(+)mu(-)) <1.6(1.2) x 10(-8) and B(B-0 -> mu(+)mu(-)mu(+)mu(-)) <6.6(5.3) x 10(-9) at 95% (90%) confidence level. In addition, limits are set in the context of a supersymmetric model which allows for the B-(s)(0) meson to decay into a scalar ( S) and pseudoscalar particle (P), where S and P have masses of 2.5 GeV/c and 214.3 MeV/c, respectively, both resonances decay into mu(+)mu(-). The branching fraction limits for these decays are B(B-s(0) -> SP) <1.6(1.2) x 10(-8) and B(B-0 -> SP) <6.3(5.1) x 10(-9) at 95% (90%) confidence level.
