INVESTIGADORES
OTERO Y GARZON Gustavo Javier
artículos
Título:
, A Search for the Flavor-Changing Neutral Current Decay Bs0->mu+ mu- in pbarp Collisions at sqrt(s)=1.96 TeV
Autor/es:
THE DZERO COLLABORATION, GUSTAVO OTERO Y GARZON
Revista:
PHYSICAL REVIEW LETTERS
Referencias:
Año: 2005 p. 718021 - 718027
ISSN:
0031-9007
Resumen:
We present the results of a search for the flavor-changing neutral current decay Bs0 à m+ m- using a data set with integrated luminosity of 240 pb-1 of ppbar collisions at sqrt(s) = 1.96 TeV collected with the D0 detector in run II of the Fermilab Tevatron collider. We find the upper limit on the branching fraction to be B(Bs0 à m+ m-) ≤ 5.0 x 10-7 at the 95% C.L. assuming no contributions from the decay Bd0 à m+ m- in the signal region. This limit is the most stringent upper bound on the branching fraction Bs0 à m+ m- to date.
