TY  - JOUR
AU  - CDF Collaboration (Aaltonen, T. et al
AU  - Cabrera, S.
PY  - 2010
DA  - 2010//
TI  - 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
T2  - Phys. Rev. Lett.
JO  - Physical Review Letters
SP  - 102002
EP  - 8pp
VL  - 104
IS  - 10
PB  - Amer Physical Soc
AB  - 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.
SN  - 0031-9007
UR  - http://arXiv.org/abs/0912.3566
UR  - https://doi.org/10.1103/PhysRevLett.104.102002
DO  - 10.1103/PhysRevLett.104.102002
LA  - English
N1  - ISI:000275543500011
ID  - CDFCollaborationAaltonen+Cabrera2010
ER  -