Szczegóły publikacji
Opis bibliograficzny
Observation of the decay $B^{+}_{C}\to B^{0}_{S}\pi^{+}$ / 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. 18, s. 181801-1–181801-9. — Bibliogr. s. 181801-5–181801-6
Autorzy (1000)
Dane bibliometryczne
| ID BaDAP | 78744 |
|---|---|
| Data dodania do BaDAP | 2014-01-20 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.111.181801 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review Letters |
Abstract
The result of a search for the decay B-c(+) -> B-s(0)pi(+) is presented, using the B-s(0) -> D-s(-)pi(+) and B-s(0) -> J/psi phi channels. The analysis is based on a data sample of pp collisions collected with the LHCb detector, corresponding to an integrated luminosity of 1 fb(-1) taken at a center-of-mass energy of 7 TeV, and 2 fb(-1) taken at 8 TeV. The decay B-c(+) -> B-s(0)pi(+) is observed with significance in excess of 5 standard deviations independently in both decay channels. The measured product of the ratio of cross sections and branching fraction is inverted right perpendicular sigma(B-c(+))/sigma(B-s(0))inverted left perpendicular x B(B-c(+) -> B-s(0)pi(+)) = inverted right perpendicular2.37 +/- 0.31 (stat) +/- 0.11 (syst)(-0.13)(+0.17) (tau(Bc+))inverted left perpendicular x 10(-3) the pseudorapidity range 2 < eta(B) < 5, where the first uncertainty is statistical, the second is systematic, and the third is due to the uncertainty on the B-c(+) lifetime. This is the first observation of a B meson decaying to another B meson via the weak interaction.
