%0 Journal Article
%T Measurement of b Hadron Lifetimes in Exclusive Decays Containing a J/Psi in p(p)over-bar Collisions at sqrt(s)=1.96 TeV
%A CDF Collaboration (Aaltonen, T. et al
%A Cabrera, S.
%J Physical Review Letters
%D 2011
%V 106
%N 12
%I Amer Physical Soc
%@ 0031-9007
%G English
%F CDFCollaborationAaltonen+Cabrera2011
%O ISI:000288794200001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=600), last updated on Fri, 06 May 2011 12:34:28 +0000
%X 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.
%R 10.1103/PhysRevLett.106.121804
%U http://arxiv.org/abs/arXiv:1012.3138
%U https://doi.org/10.1103/PhysRevLett.106.121804
%P 121804-8pp