Measurements of b-hadron masses are performed with the exclusive decay modes B+ --> J/psi K+, B-0 --> J/psi K-0*, B-0 --> J/psi K-S(0), B-s(0) --> j/psi phi and Lambda(0)(b) --> J/psi Lambda using all integrated luminosity of 35 pb(-1) collected in pp collisions at a centre-of-mass energy of 7 TeV by the LHCb experiment. The momentum scale is calibrated with J/psi --> mu(+)mu(-) decays and verified to be known to a relative precision of 2 x 10(-4) using other two-body decays. The results are more precise than previous measurements, particularly ill the case of the B-s(0) and Lambda(0)(b) masses. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.

Measurement of b-hadron masses / R., A., C. A., B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., G., A., P. A., C., A. A., A., S., A., Y., A., J., A., R. B., A., O. A., G., F., A., L., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 708:3-5(2012), pp. 241-248. [10.1016/j.physletb.2012.01.058]

Measurement of b-hadron masses

G. Casse;SARTI, ALESSIO;SCIUBBA, Adalberto;
2012

Abstract

Measurements of b-hadron masses are performed with the exclusive decay modes B+ --> J/psi K+, B-0 --> J/psi K-0*, B-0 --> J/psi K-S(0), B-s(0) --> j/psi phi and Lambda(0)(b) --> J/psi Lambda using all integrated luminosity of 35 pb(-1) collected in pp collisions at a centre-of-mass energy of 7 TeV by the LHCb experiment. The momentum scale is calibrated with J/psi --> mu(+)mu(-) decays and verified to be known to a relative precision of 2 x 10(-4) using other two-body decays. The results are more precise than previous measurements, particularly ill the case of the B-s(0) and Lambda(0)(b) masses. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
2012
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of b-hadron masses / R., A., C. A., B., B., A., M., A., C., A., A., A., Z., A., J., A., F., A., M., A., G., A., P. A., C., A. A., A., S., A., Y., A., J., A., R. B., A., O. A., G., F., A., L., A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 708:3-5(2012), pp. 241-248. [10.1016/j.physletb.2012.01.058]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/493863
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