HAL : in2p3-00663247, version 1
 arXiv : 1112.4896
 Physics Letters B 708 (2012) 241-248
 Measurement of b-hadron masses
 LHCb Collaboration(s)
 (2012)
 Measurements of b-hadron masses are performed with the exclusive decay modes B+ -> J/\psi\ K+, B0 -> J/\psi\ K*0, B0 -> J/\psi\ K0S, B0s -> J/\psi\ \phi\ and {\Lambda}b -> J/\psi\ \Lambda\ using an 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 in the case of the B0s and {\Lambda}b masses.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/1112.4896
 in2p3-00663247, version 1 http://hal.in2p3.fr/in2p3-00663247 oai:hal.in2p3.fr:in2p3-00663247 Contributeur : Françoise Marechal <> Soumis le : Jeudi 26 Janvier 2012, 14:28:30 Dernière modification le : Vendredi 10 Février 2012, 13:41:25