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

  • V. M. Abazov
  • , B. Abbott
  • , M. Abolins
  • , B. S. Acharya
  • , M. Adams
  • , T. Adams
  • , E. Aguilo
  • , M. Ahsan
  • , G. D. Alexeev
  • , G. Alkhazov
  • , A. Alton
  • , G. Alverson
  • , G. A. Alves
  • , L. S. Ancu
  • , T. Andeen
  • , M. S. Anzelc
  • , M. Aoki
  • , Y. Arnoud
  • , M. Arov
  • , M. Arthaud
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Zivkovic, V. Zutshi, E. G. Zverev
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Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

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.

Original languageEnglish
Article number012003
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume82
Issue number1
DOIs
StatePublished - 26 Jul 2010

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