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 betau(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 givestau(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.

Measurement of $$\tau _\text {L}$$ using the $${B} _s^0 \rightarrow J/\psi \eta $$ decay mode / Aaij, R., Abdelmotteleb, A.S.W., Beteta, C.A., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Albero, A.A., Aliouche, Z., Cartelle, P.A., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 83:7(2023). [10.1140/epjc/s10052-023-11634-4]

Measurement of $$\tau _\text {L}$$ using the $${B} _s^0 \rightarrow J/\psi \eta $$ decay mode

Casse, G.;Sarti, A.;
2023

Abstract

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 betau(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 givestau(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.
2023
B Physics, Branching fraction, Charm Physics, Hadron-Hadron Scattering
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of $$\tau _\text {L}$$ using the $${B} _s^0 \rightarrow J/\psi \eta $$ decay mode / Aaij, R., Abdelmotteleb, A.S.W., Beteta, C.A., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Albero, A.A., Aliouche, Z., Cartelle, P.A., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 83:7(2023). [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/11573/1720404
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