E-viri
Recenzirano
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Aaij, R; Abdelmotteleb, A. S. W; Beteta, C. Abellan; Abudinén, F; Ackernley, T; Adeva, B; Adinolfi, M
The European physical journal. C, Particles and fields, 07/2023, Letnik: 83, Številka: 7Journal Article
Using a proton-proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of Formula omitted, the lifetime of the light Formula omitted mass eigenstate, Formula omitted, is measured using the Formula omitted decay mode to be tauL=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 Formula omitted of integrated luminosity gives tauL=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.
