Počet záznamů: 1

Measurement of the Angular and Lifetime Parameters of the Decays B-d(0) -> J/psi K*(0) and B-s(0) -> J/psi phi

  1. 1.
    0349815 - FZU-D 2011 RIV US eng J - Článek v odborném periodiku
    Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš
    Measurement of the Angular and Lifetime Parameters of the Decays B-d(0) -> J/psi K*(0) and B-s(0) -> J/psi phi.
    Physical Review Letters. Roč. 102, č. 3 (2009), 032001/1-032001/7 ISSN 0031-9007
    Grant CEP: GA MŠk LC527; GA MŠk LA08047
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: D0 * detector
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 7.328, rok: 2009
    http://link.aps.org/doi/10.1103/PhysRevLett.102.032001

    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.
    Trvalý link: http://hdl.handle.net/11104/0189957