Abstract
The first measurement of the effective lifetime of the B̄-0s meson in the decay B̄-0s→D-sD+s 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 B̄-0s→D-sD+s 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 B̄-0s mass eigenstate of ΓL=0.725±0.014±0.009 ps-1. The B̄-0s lifetime is also measured using the flavor-specific B̄-0s→D-D+s decay to be 1.52±0.15±0.01 ps.
Original language | English |
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Article number | 111802 |
Number of pages | 9 |
Journal | Physical Review Letters |
Volume | 112 |
Issue number | 11 |
DOIs | |
Publication status | Published - 19 Mar 2014 |
ASJC Scopus subject areas
- General Physics and Astronomy