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Measurement of the B_s⁰ meson lifetime in D_s^+π^- decays
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arxiv 1407.5873 v1 pith:TEPMC533 submitted 2014-07-22 hep-ex
Measurement of the B_s⁰ meson lifetime in D_s^+π^- decays
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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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Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2023
hep-ex 2024-11 accept novelty 2.0
The Heavy Flavour Averaging Group reports updated world averages for b-hadron, c-hadron, and tau-lepton properties including branching fractions, lifetimes, mixing, CP violation, and CKM elements.
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