Abstract
We present a measurement of the ratio of the B¯s0 meson lifetime, in the flavor-specific decay to Ds+π-, to that of the B¯0 meson. The pp collision data used correspond to an integrated luminosity of 1fb-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¯s0 lifetime to be τ(B¯s0)=1.535±0.015±0.014ps, 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.
Original language | English |
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Article number | 172001 |
Journal | Physical Review Letters |
Volume | 113 |
Issue number | 17 |
DOIs | |
Publication status | Published - 24 Oct 2014 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2014 CERN, for the LHCb Collaboration.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy