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Phys. Rev. Lett. 86, 4227–4230 (2001)

Flavor-Dependent Supersymmetric Phases and CP Asymmetry in BXsγ Decays

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D. Bailin and S. Khalil*
Centre for Theoretical Physics, University of Sussex, Brighton BN1 9QJ, United Kingdom

Received 10 October 2000; published in the issue dated 7 May 2001

We study the direct CP asymmetry in BXsγ decay in supersymmetric models with nonuniversal A terms. We show that the flavor-dependent phases of the A terms, unlike the flavor-independent ones, can give rise to a large contribution to the CP asymmetry while respecting the experimental bounds on the branching ratio of BXsγ decay and the electric dipole moments of the electron and neutron. The CP asymmetry of this decay is predicted to be much larger than the standard model prediction in a wide region of the parameter space. In particular, it can be of order 10%–15% which can be accessible at B factories.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.4227
DOI:
10.1103/PhysRevLett.86.4227
PACS:
12.60.Jv, 11.30.Er, 13.20.He

*Permanent address: Ain Shams University, Faculty of Science, Cairo,11566, Egypt.