First observation of a baryonic B+ c decay

LHCb Collaboration

Producció científica: Article en revista indexadaArticleAvaluat per experts

35 Cites (Scopus)

Resum

A baryonic decay of the B+ c meson, B+ c → J/ψpp¯π+, is observed for the first time, with a significance of 7.3 standard deviations, in pp collision data collected with the LHCb detector and corresponding to an integrated luminosity of 3.0 fb-1 taken at center-of-mass energies of 7 and 8 TeV. With the B+ c → J/ψπ+ decay as the normalization channel, the ratio of branching fractions is measured to be B(B+ c → J/ψpp¯π+)/B(B+ c → J/ψπ+) = 0.143+0.039 -0.034(stat) ± 0.013(syst). The mass of the B+ c meson is determined as M(B+ c) = 6274.0 ± 1.8(stat) ± 0.4(syst) MeV/c2, using the B+ c → J/ψpp¯π+ channel.

Idioma originalAnglès
Número d’article152003
RevistaPhysical Review Letters
Volum113
Número15
DOIs
Estat de la publicacióPublicada - 10 d’oct. 2014

Fingerprint

Navegar pels temes de recerca de 'First observation of a baryonic B+ c decay'. Junts formen un fingerprint únic.

Com citar-ho