Search for CP violation in Bs0→μ+Ds-X decays in pp̄ collisions at √s=1.96TeV

Nenhuma Miniatura disponível

Data

2010-07-26

Autores

Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Ahsan, M.
Alexeev, G. D.
Alkhazov, G.

Título da Revista

ISSN da Revista

Título de Volume

Editor

Resumo

We have performed a search for CP violation in a sample of Bs0→μ+Ds-X decays corresponding to 5fb-1 of proton-antiproton collisions collected by the D0 detector in Run II at the Fermilab Tevatron Collider. New physics in Bs0 mixing could contribute a significant CP violating weak phase, which would be observed as a difference in the decay-time distribution for Bs0→B̄s0 oscillated states versus that for B̄s0→Bs0. A fit to the decay-time distributions of the Bs0/B̄s0 candidates yields the flavor-specific asymmetry afss=[-1.7±9.1(stat)-1.5+1.4(syst)]×10-3, which excludes CP violation due to new physics within the experimental sensitivity. © 2010 The American Physical Society.

Descrição

Palavras-chave

Como citar

Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 82, n. 1, 2010.