Szczegóły publikacji
Opis bibliograficzny
Search for the lepton-flavor-violating decays $B^{0}_{s}\to e^{\pm}\mu^{\pm}$ and $B^{0} \to e^{\pm}\mu^{\pm}$ / 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. 14, s. 141801-1–141801-9. — Bibliogr. s. 141801-5–141801-6
Autorzy (1000)
Dane bibliometryczne
| ID BaDAP | 78703 |
|---|---|
| Data dodania do BaDAP | 2014-01-16 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.111.141801 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Czasopismo/seria | Physical Review Letters |
Abstract
A search for the lepton-flavor-violating decays B-s(0) -> e(+/-)mu(-/+) and B-0 -> e(+/-)mu(-/+) is performed with a data sample, corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions at root s = 7 TeV, collected by the LHCb experiment. The observed number of B-s(0) -> e(+/-)mu(-/+) and B-0 -> e(+/-)mu(-/+) candidates is consistent with background expectations. Upper limits on the branching fractions of both decays are determined to be B(B-s(0) -> e(+/-)mu(-/+)) < 1.1(1.4) x 10(-8) and B(B-0 -> e(+/-)mu(-/+)) < 2.8(3.7) x 10(-9) at 90% (95%) confidence level (C.L.). These limits are a factor of 20 lower than those set by previous experiments. Lower bounds on the Pati-Salam leptoquark masses are also calculated, M-LQ(B-s(0) -> e(+/-)mu(-/+)) > 101 TeV/c(2) and M-LQ(B-0 -> e(+/-)mu -/+) > 126 TeV/c(2) at 95% C.L., and are a factor of 2 higher than the previous bounds.