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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
  • A. Askew, B. Åsman, O. Atramentov, C. Avila, J. Backusmayes, F. Badaud, L. Bagby, B. Baldin, D. V. Bandurin, S. Banerjee, E. Barberis, A. F. Barfuss, P. Bargassa, P. Baringer, J. Barreto, J. F. Bartlett, U. Bassler, D. Bauer, S. Beale, A. Bean, M. Begalli, M. Begel, C. Belanger-Champagne, L. Bellantoni, A. Bellavance, J. A. Benitez, S. B. Beri, G. Bernardi, R. Bernhard, I. Bertram, M. Besançon, R. Beuselinck, V. A. Bezzubov, P. C. Bhat, V. Bhatnagar, G. Blazey, S. Blessing, K. Bloom, A. Boehnlein, D. Boline, T. A. Bolton, E. E. Boos, G. Borissov, T. Bose, A. Brandt, R. Brock, G. Brooijmans, A. Bross, D. Brown, X. B. Bu, D. Buchholz, M. Buehler, V. Buescher, V. Bunichev, S. Burdin, T. H. Burnett, C. P. Buszello, P. Calfayan, B. Calpas, S. Calvet, J. Cammin, M. A. Carrasco-Lizarraga, E. Carrera, W. Carvalho, B. C.K. Casey, H. Castilla-Valdez, S. Chakrabarti, D. Chakraborty, K. M. Chan, A. Chandra, E. Cheu, D. K. Cho, S. Choi, B. Choudhary, T. Christoudias, S. Cihangir, D. Claes, J. 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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 - Jul 26 2010

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