This paper reports the first measurement of the effective B-S(0) -> J/psi K-S(0) lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: tau(eff)(J/psi KS0) = 1.75 +/- 0.12 (stat) +/- 0.07 (syst) ps and B(B-S(0) -> J/psi K-S(0)) = (1.97 +/- 0.23) x 10(-5). For the latter measurement, the uncertainty includes both statistical and systematic sources. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.

Measurement of the effective B-S(0) -> J/psi K-S(0) lifetime / R., A., C. A., B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., S., A., S., A., Y., A., L., A., J., A., R., A., R. B., A., et al.. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 873:(2013), pp. 275-292. [10.1016/j.nuclphysb.2013.04.021]

Measurement of the effective B-S(0) -> J/psi K-S(0) lifetime

SARTI, ALESSIO;SCIUBBA, Adalberto;
2013

Abstract

This paper reports the first measurement of the effective B-S(0) -> J/psi K-S(0) lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb(-1) of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: tau(eff)(J/psi KS0) = 1.75 +/- 0.12 (stat) +/- 0.07 (syst) ps and B(B-S(0) -> J/psi K-S(0)) = (1.97 +/- 0.23) x 10(-5). For the latter measurement, the uncertainty includes both statistical and systematic sources. (C) 2013 CERN. Published by Elsevier B.V. All rights reserved.
2013
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the effective B-S(0) -> J/psi K-S(0) lifetime / R., A., C. A., B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., S., A., G., A., P. A., C., S., A., S., A., Y., A., L., A., J., A., R., A., R. B., A., et al.. - In: NUCLEAR PHYSICS. B. - ISSN 0550-3213. - 873:(2013), pp. 275-292. [10.1016/j.nuclphysb.2013.04.021]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/560375
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