The first measurement of the effective lifetime of the B̄s0 meson in the decay B̄s0→Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb-1, collected by the LHCb experiment. The measured value of the B̄s0→Ds-Ds+ effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B̄s0 mass eigenstate of ΓL=0.725±0. 014±0.009 ps-1. The B̄s0 lifetime is also measured using the flavor-specific B̄s0→D-Ds+ decay to be 1.52±0.15±0.01 ps. © 2014 CERN, for the LHCb Collaboration.

Measurement of the B ̄s 0 → D s - Ds + and ̄ Bs 0 → D-Ds + effective lifetimes / R., A., B., A., M., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., A. A., J.r., S., A., S., A., Y., A., L. b., A., J., A., R., A., M. b., A., J., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 112:(2014). [10.1103/PhysRevLett.112.111802]

Measurement of the B ̄s 0 → D s - Ds + and ̄ Bs 0 → D-Ds + effective lifetimes

G. Casse;SARTI, ALESSIO;SCIUBBA, Adalberto;
2014

Abstract

The first measurement of the effective lifetime of the B̄s0 meson in the decay B̄s0→Ds-Ds+ is reported using a proton-proton collision data set, corresponding to an integrated luminosity of 3 fb-1, collected by the LHCb experiment. The measured value of the B̄s0→Ds-Ds+ effective lifetime is 1.379±0.026±0.017 ps, where the uncertainties are statistical and systematic, respectively. This lifetime translates into a measurement of the decay width of the light B̄s0 mass eigenstate of ΓL=0.725±0. 014±0.009 ps-1. The B̄s0 lifetime is also measured using the flavor-specific B̄s0→D-Ds+ decay to be 1.52±0.15±0.01 ps. © 2014 CERN, for the LHCb Collaboration.
2014
Data set, Decay widths, Effective lifetime, Eigen state, Integrated luminosity, Measured values, Proton proton collisions; Atomic physics; Physics
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the B ̄s 0 → D s - Ds + and ̄ Bs 0 → D-Ds + effective lifetimes / R., A., B., A., M., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., A. A., J.r., S., A., S., A., Y., A., L. b., A., J., A., R., A., M. b., A., J., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 112:(2014). [10.1103/PhysRevLett.112.111802]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/665090
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 30
  • ???jsp.display-item.citation.isi??? 11
social impact