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.

Aaij, R., Abdelmotteleb, A., Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of τL using the Bs0→J/ψη decay mode. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 83(7) [10.1140/epjc/s10052-023-11634-4].

Measurement of τL using the Bs0→J/ψη decay mode

Borsato M.;Calvi M.;Capelli S.;Carniti P.;Fazzini D.;Pardinas J. G.;Gotti C.;Kirsebom V. S.;Martinazzoli L.;Martinelli M.;Meloni S.;Minotti A.;Petruzzo M.;Pizzichemi M.;Salomoni M.;Shields E. B.;
2023

Abstract

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.
Articolo in rivista - Articolo scientifico
B meson decay, B meson lifetime, Hadron Collider
English
17-lug-2023
2023
83
7
629
none
Aaij, R., Abdelmotteleb, A., Beteta, C., Abudinen, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of τL using the Bs0→J/ψη decay mode. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 83(7) [10.1140/epjc/s10052-023-11634-4].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/454524
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