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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/133207
Measurement of the ¯B0s Meson Lifetime in D+sπ− Decays
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We present a measurement of the ratio of the ¯ B 0 s meson lifetime, in the flavor-specific decay to D + s π − , to that of the ¯ B 0 meson. The p p collision data used correspond to an integrated luminosity of 1 fb − 1 , 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 ¯ B 0 lifetime, we determine the flavor-specific ¯ B 0 s lifetime to be τ ( ¯ B 0 s ) = 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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BADALOV, Alexey, et al. Measurement of the ¯B0s Meson Lifetime in D+sπ− Decays. Physical Review Letters. 2014. Vol. 113, num. 17, pags. 172001. ISSN 0031-9007. [consulted: 6 of October of 2026]. Available at: https://hdl.handle.net/2445/133207