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 Xi(-)(b) and Omega(-)(b) baryon lifetimes
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 154
EP  - 162
VL  - 736
PB  - Elsevier Science Bv
AB  - Using a data sample of pp collisions corresponding to an integrated luminosity of 3 fb(-1), the Xi(-)(b) and Omega(-)(b) baryons are reconstructed in the Xi(-)(b) -> J/psi Xi(-) and Omega(-)(b) -> J/psi Omega(-) decay modes and their lifetimes measured to be tau(Xi(-)(b)) = 1.55(-0.09)(+0.10) (stat) +/- 0.03 (syst) ps, tau(Omega(-)(b)) = 1.54(-0.21)(+0.26) (stat) +/- 0.05 (syst) ps. These are the most precise determinations to date. Both measurements are in good agreement with previous experimental results and with theoretical predictions.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1405.1543
UR  - https://doi.org/10.1016/j.physletb.2014.06.064
DO  - 10.1016/j.physletb.2014.06.064
LA  - English
N1  - WOS:000341487800020
ID  - LHCbCollaborationAaij_etal2014
ER  -