Using a dataset corresponding to 9 fb-1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes Bs0->J/Psi eta' and B0s->J/Psi pi+pi- are studied. The decay-width difference between the light and heavy mass eigenstates of the Bs0 meson is measured to be DeltaGamma_s = 0.087 \pm 0.012 \pm 0.009 ps-1, where the first uncertainty is statistical and the second systematic.
A measurement of DeltaGamma_s
Bassi G.Membro del Collaboration Group
;Kleijne N.Membro del Collaboration Group
;Morello M. J.Membro del Collaboration Group
;Passaro D.Membro del Collaboration Group
;Pica L.Membro del Collaboration Group
;Ribatti R.Membro del Collaboration Group
;Riccardi D.Membro del Collaboration Group
;
2024
Abstract
Using a dataset corresponding to 9 fb-1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes Bs0->J/Psi eta' and B0s->J/Psi pi+pi- are studied. The decay-width difference between the light and heavy mass eigenstates of the Bs0 meson is measured to be DeltaGamma_s = 0.087 \pm 0.012 \pm 0.009 ps-1, where the first uncertainty is statistical and the second systematic.File in questo prodotto:
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JHEP05(2024)253.pdf
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