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Article Dans Une Revue Physical Review Letters Année : 2014

Measurement of the $B_s^0$ meson lifetime in $D_s^+\pi^-$ decays

R. Aaij
  • Fonction : Auteur
J. Cogan
O. Leroy
J. Serrano

Résumé

We present a measurement of the ratio of the Bs meson lifetime, in the flavor-specific decay to $D_s^+\pi^-$, to that of the B0 meson. The pp collision data used correspond to an integrated luminosity of 1/fb, collected with the LHCb detector, at a center-of-mass energy of 7 TeV. Combining our measured value of 1.010 +/- 0.010 +/- 0.008 for this ratio with the known lifetime, we determine the flavor-specific Bs lifetime to be tau(Bs) = 1.535 +/- 0.015 +/- 0.014 ps, where the uncertainties are statistical and systematic, respectively. This is the most precise measurement to date, and is consistent with previous measurements and theoretical predictions.
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Dates et versions

in2p3-01038104 , version 1 (07-09-2023)

Identifiants

Citer

R. Aaij, Y. Amhis, S. Barsuk, M. Borsato, O. Callot, et al.. Measurement of the $B_s^0$ meson lifetime in $D_s^+\pi^-$ decays. Physical Review Letters, 2014, 113 (17), pp.172001. ⟨10.1103/PhysRevLett.113.172001⟩. ⟨in2p3-01038104⟩
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