Understanding the like-sign dimuon charge asymmetry in $p \bar{p}$ collisions

  title={Understanding the like-sign dimuon charge asymmetry in \$p \bar\{p\}\$ collisions},
  author={Guennadi Borissov and Bruce Hoeneisen},
  journal={Physical Review D},
The D0 Collaboration has measured the like-sign dimuon charge asymmetry in $p\overline{p}$ collisions at the Fermilab Tevatron collider. The result is significantly different from the standard model expectation of $CP$ violation in mixing. In this paper we consider the possible causes of this asymmetry and identify one standard model source not considered before, namely, $CP$ violation in interference of decays of ${B}^{0}$ with and without mixing to flavor nonspecific states ${f}_{i… 

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in Proceedings of CKM2010
  • Warwick, 2010, edited by Tim Gershon, eConf C100906
  • 2010
  • Lett. B 694, 374
  • 2011
  • Lett. B443, 365
  • 1998
  • Rev. D 63
  • 2001
  • Rev. D 56, 341
  • 1997