Measurement of |Vcb | with Bs0 → Ds (∗)- μ+νμ decays

LHCb Collaboration

Producció científica: Article en revista indexadaArticleAvaluat per experts

47 Cites (Scopus)


The element |Vcb| of the Cabibbo-Kobayashi-Maskawa matrix is measured using semileptonic Bs0 decays produced in proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1. Rates of Bs0→Ds-μ+νμ and Bs0→Ds∗-μ+νμ decays are analyzed using hadronic form-factor parametrizations derived either by Caprini, Lellouch and Neubert (CLN) or by Boyd, Grinstein and Lebed (BGL). The measured values of |Vcb| are (41.4±0.6±0.9±1.2)×10-3 and (42.3±0.8±0.9±1.2)×10-3 in the CLN and BGL parametrization, respectively. The first uncertainty is statistical, the second systematic, and the third is due to the external inputs used in the measurement. These results are in agreement with those obtained from decays of B+ and B0 mesons. They are the first determinations of |Vcb| at a hadron-collider experiment and the first using Bs0 meson decays.

Idioma originalAnglès
Número d’article072004
RevistaPhysical Review D
Estat de la publicacióPublicada - 1 d’abr. 2020


Navegar pels temes de recerca de 'Measurement of |Vcb | with Bs0 → Ds (∗)- μ+νμ decays'. Junts formen un fingerprint únic.

Com citar-ho