TY - JOUR
T1 - Measurement of τL using the Bs0→J/ψη decay mode
AU - LHCb Collaboration
AU - Aaij, R.
AU - Abdelmotteleb, A.S.W.
AU - Abellan Beteta, C.
AU - Abudinén, F.
AU - Ackernley, T.
AU - Adeva, B.
AU - Adinolfi, M.
AU - de Bruyn, Kristof
AU - Galati, Maria Domenica
AU - Mulder, Mick
AU - Onderwater, Gerco
AU - van Veghel , Maarten
PY - 2023/8
Y1 - 2023/8
N2 - Using a proton–proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of 5.7fb-1 , the lifetime of the light Bs0 mass eigenstate, τL , is measured using the Bs0→J/ψη decay mode to be τL=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 τL=1.452±0.014±0.007±0.002ps, 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. © 2023, The Author(s).
AB - Using a proton–proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of 5.7fb-1 , the lifetime of the light Bs0 mass eigenstate, τL , is measured using the Bs0→J/ψη decay mode to be τL=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 τL=1.452±0.014±0.007±0.002ps, 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. © 2023, The Author(s).
U2 - 10.1140/epjc/s10052-023-11634-4
DO - 10.1140/epjc/s10052-023-11634-4
M3 - Article
SN - 1434-6044
VL - 83
JO - The European Physical Journal C
JF - The European Physical Journal C
IS - 7
M1 - 629
ER -