%0 Journal Article
%T Measurement of the Lambda(0)(b) Lifetime in Lambda(0)(b) -> Lambda(+)(c)pi(-) Decays in p(p)over-bar Collisions at root s=1.96 TeV
%A CDF Collaboration (Aaltonen, T. et al
%A Cabrera, S.
%J Physical Review Letters
%D 2010
%V 104
%N 10
%I Amer Physical Soc
%@ 0031-9007
%G English
%F CDFCollaborationAaltonen+Cabrera2010
%O ISI:000275543500011
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=294), last updated on Mon, 21 Feb 2011 12:23:28 +0000
%X We report a measurement of the lifetime of the Lambda(0)(b) baryon in decays to the Lambda(+)(c)pi(-) final state in a sample corresponding to 1.1 fb(-1) collected in p (p) over bar collisions at root s = 1.96 TeV by the CDF II detector at the Tevatron collider. Using a sample of about 3000 fully reconstructed Lambda(0)(b) events we measure tau(Lambda(0)(b) ) = 1.401 +/- 0.046(stat) +/- 0.035(syst) ps (corresponding to c tau(Lambda(0)(b)) = 420.1 +/- 13.7(stat) +/- 10.6(syst) μm, where c is the speed of light). The ratio of this result and the world average B-0 lifetime yields tau(Lambda(0)(b))/tau(B-0) = 0.918 +/- 0.038 (stat) and (syst), in good agreement with recent theoretical predictions.
%R 10.1103/PhysRevLett.104.102002
%U http://arXiv.org/abs/0912.3566
%U https://doi.org/10.1103/PhysRevLett.104.102002
%P 102002-8pp