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Search for Bs0??+?- and B0??+?- decays with CDF II

Abstract: A search has been performed for B0s??+?? and B0??+?? decays using 7??fb?1 of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. The observed number of B0 candidates is consistent with background-only expectations and yields an upper limit on the branching fraction of B(B0??+??)<6.0×10?9 at 95% confidence level. We observe an excess of B0s candidates. The probability that the background processes alone could produce such an excess or larger is 0.27%. The probability that the combination of background and the expected standard model rate of B0s??+?? could produce such an excess or larger is 1.9%. These data are used to determine B(B0s??+??)=(1.8+1.1?0.9)×10?8 and provide an upper limit of B(B0s??+??)<4.0×10?8 at 95% confidence level.

Other publications of the same journal or congress with authors from the University of Cantabria

 Authorship: Aaltonen T., Álvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J.A., Apresyan A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Auerbach B., Aurisano A., Azfar F., Badgett W., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauce M., Bauer G., Bedeschi F., Beecher D., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Binkley M.,

 Fuente: Physical Review Letters, 2011, 107(19), 191801

 Publisher: American Physical Society

 Publication date: 01/11/2011

 No. of pages: 7

 Publication type: Article

 DOI: 10.1103/PhysRevLett.107.191801

 ISSN: 0031-9007,1079-7114

 Publication Url: https://doi.org/10.1103/PhysRevLett.107.191801

Authorship

AALTONEN, T.

BARBARA ALVAREZ GONZALEZ

BRUNO CASAL LARAÑA

FRANCISCO JAVIER CUEVAS MAESTRO

JOSE ENRIQUE PALENCIA CORTEZON