Large CP violation in Bs meson mixing with EDM constraint in supersymmetry

Motoi Endo, Norimi Yokozaki

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Motivated by the recent measurement of the like-sign dimuon charge asymmetry, we investigate anomalous CP violation in the Bs- B̄s mixing within the supersymmetry. We show that when gluino diagrams dominate supersymmetry contributions, it is very difficult to realize a large Bs - B̄s mixing phase under the constraint from electric dipole moments barring cancellations. This constraint can be relaxed by supposing superparticles decoupled. We find that it is possible to achieve the large CP asymmetry, and the branching ratio of Bs → μ+μ- becomes sizable.

Original languageEnglish
Article number130
JournalJournal of High Energy Physics
Issue number3
Publication statusPublished - 2011
Externally publishedYes


  • Supersymmetry phenomenology

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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