TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2014
DA  - 2014//
TI  - Measurement of the (B)over-bar(s)(0) Meson Lifetime in D-s(+)pi(-) Decays
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 172001
EP  - 9pp
VL  - 113
IS  - 17
PB  - Amer Physical Soc
AB  - We present a measurement of the ratio of the (B) over bar (0)(s) meson lifetime, in the flavor-specific decay to D-s(+)pi(-), to that of the (B) over bar (0) meson. The pp 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) over bar (0) lifetime, we determine the flavor-specific (B) over bar (0)(s) lifetime to be tau((B) over bar (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.
SN  - 0031-9007
UR  - http://arxiv.org/abs/1407.5873
UR  - https://doi.org/10.1103/PhysRevLett.113.172001
DO  - 10.1103/PhysRevLett.113.172001
LA  - English
N1  - WOS:000344056800002
ID  - LHCbCollaborationAaij_etal2014
ER  -