TY  - JOUR
AU  - CDF Collaboration (Aaltonen, T. et al
AU  - Cabrera, S.
PY  - 2011
DA  - 2011//
TI  - Measurement of b Hadron Lifetimes in Exclusive Decays Containing a J/Psi in p(p)over-bar Collisions at sqrt(s)=1.96 TeV
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 121804
EP  - 8pp
VL  - 106
IS  - 12
PB  - Amer Physical Soc
AB  - We report on a measurement of b-hadron lifetimes in the fully reconstructed decay modes B+-> J/psi K+, B-0 -> J/psi K*(892)(0), B-0 -> J/psi K-s(0), and Lambda(0)(b)-> J/psi Lambda(0) using data corresponding to an integrated luminosity of 4.3 fb(-1), collected by the CDF II detector at the Fermilab Tevatron. The measured lifetimes are tau(B+)=[1.639 +/- 0.009(stat)+/- 0.009(syst)]ps, tau(B-0)=[1.507 +/- 0.010(stat)+/- 0.008(syst)]ps, and tau(Lambda(0)(b))=[1.537 +/- 0.045(stat)+/- 0.014(syst)]ps. The lifetime ratios are tau(B+)/tau(B-0)=[1.088 +/- 0.009(stat)+/- 0.004(syst)] and tau(Lambda(0)(b))/tau(B-0)=[1.020 +/- 0.030(stat)+/- 0.008(syst)]. These are the most precise determinations of these quantities from a single experiment.
SN  - 0031-9007
UR  - http://arxiv.org/abs/arXiv:1012.3138
UR  - https://doi.org/10.1103/PhysRevLett.106.121804
DO  - 10.1103/PhysRevLett.106.121804
LA  - English
N1  - ISI:000288794200001
ID  - CDFCollaborationAaltonen+Cabrera2011
ER  -