TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Remon Alepuz, C.
AU  - Ruiz Valls, P.
AU  - Sanchez Mayordomo, C.
PY  - 2016
DA  - 2016//
TI  - Measurement of the B-s(0) -> J/Psi eta lifetime
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 484
EP  - 492
VL  - 762
PB  - Elsevier Science Bv
AB  - Using a data set corresponding to an integrated luminosity of 3fb(-1), collected by the LHCb experiment in ppcollisions at centre-of-mass energies of 7 and 8TeV, the effective lifetime in the B-s(0) -> J/Psi eta decay mode, teff, is measured to be tau(eff) = 1.479 +/- 0.034 (stat)+/- 0.011 (syst) ps. Assuming CP conservation, tau(eff) corresponds to the lifetime of the light B-s(0) mass eigenstate. This is the first measurement of the effective lifetime in this decay mode.
SN  - 0370-2693
UR  - http://arxiv.org/abs/1607.06314
UR  - https://doi.org/10.1016/j.physletb.2016.10.006
DO  - 10.1016/j.physletb.2016.10.006
LA  - English
N1  - WOS:000388473700067
ID  - LHCbCollaborationAaij_etal2016
ER  -