364 articles – 2936 Notices  [english version]
 HAL : in2p3-00326158, version 1
 arXiv : 0810.0037
 Physical Review Letters 102 (2009) 032001
 Measurement of the angular and lifetime parameters of the decays $B_{d}^{0}\to J/\psi K^{*0}$ and $B_{s}^{0}\to J/\psi\phi$
 D0 Collaboration(s)
 (2009)
 We present measurements of the linear polarization amplitudes and the strong relative phases that describe the flavor-untagged decays $B_{d}^{0}\to J/\psi K^{*0}$ and $B_{s}^{0}\to J/\psi\phi$ in the transversity basis. We also measure the mean lifetime $\bar{\tau}_{s}$ of the $B_{s}^{0}$ mass eigenstates and the lifetime ratio $\bar{\tau}_{s}/\tau_{d}$. The analyses are based on approximately 2.8 fb$^{-1}$ of data recorded with the D0 detector. From our measurements of the angular parameters we conclude that there is no evidence for a deviation from flavor SU(3) symmetry for these decays and that the factorization assumption is not valid for the $B_{d}^{0}\to J/\psi K^{*0}$ decay.
 Thème(s) : Physique/Physique des Hautes Energies - Expérience
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0810.0037
 in2p3-00326158, version 1 http://hal.in2p3.fr/in2p3-00326158 oai:hal.in2p3.fr:in2p3-00326158 Contributeur : Emmanuelle Vernay <> Soumis le : Jeudi 2 Octobre 2008, 08:42:25 Dernière modification le : Jeudi 22 Janvier 2009, 08:36:23