Počet záznamů: 1

Search for the rare decay B.sup.0./sup..sub.s./sub. /to mu.sup.+./sup.mu.sup.-./sup.

  1. 1.
    0352161 - FZU-D 2011 RIV NL eng J - Článek v odborném periodiku
    Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš
    Search for the rare decay B0s /to mu+mu-.
    Physics Letters. B. Roč. 693, č. 5 (2010), s. 539-544 ISSN 0370-2693
    Grant CEP: GA MŠk LC527; GA MŠk LA08047
    Výzkumný záměr: CEZ:AV0Z10100502
    Klíčová slova: D0 * Fermilab, * ppbar collisions
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 5.255, rok: 2010
    http://arxiv.org/abs/arXiv:1006.3469

    We present the results of a search for the flavor changing neutral current decay B_s^0->mu^+mu^- using 6.1 fb^-1 of ppbar collisions at sqrt(s) = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron Collider. The observed number of B_s^0 candidates is consistent with background expectations. The resulting upper limit on the branching fraction is BR(B_s^0->mu^+mu^-) < 5.1 x 10^-8 at the 95% C.L. This limit is a factor of 2.4 better than that of the previous D0 analysis and the best limit to date.
    Trvalý link: http://hdl.handle.net/11104/0191738