TY  - JOUR
AU  - LHCb Collaboration (Aaij, R. et al
AU  - Jaimes Elles, S. J.
AU  - Jashal, B. K.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
AU  - Rebollo De Miguel, M.
AU  - Remon Alepuz, C.
AU  - Ruiz Vidal, J.
AU  - Sanderswood, I.
PY  - 2023
DA  - 2023//
TI  - Measurement of τL using the Bs0 →J/ψη decay mode
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 629 - 13pp
VL  - 83
IS  - 7
PB  - Springer
AB  - Using a proton-proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of 5.7 fb(-1), the lifetime of the light B-s(0) mass eigenstate, tau(L), is measured using the B-s(0) -> J/psi eta decay mode to be tau(L) = 1.445 +/- 0.016(stat) +/- 0.008(syst) ps. A combination of this result with a previous LHCb analysis using an independent dataset corresponding to 3 fb(-1) of integrated luminosity gives tau(L) = 1.452 +/- 0.014 +/- 0.007 +/- 0.002 ps, where the first uncertainty is statistical, the second due to the uncorrelated part of the systematic uncertainty and the third due to the correlated part of the systematic uncertainty.
SN  - 1434-6044
UR  - https://arxiv.org/abs/2206.03088
UR  - https://doi.org/10.1140/epjc/s10052-023-11634-4
DO  - 10.1140/epjc/s10052-023-11634-4
LA  - English
N1  - WOS:001062444500004
ID  - LHCbCollaborationAaij_etal2023
ER  -