B-meson observables in the maximally CP-violating MSSM with minimal flavor violation
- Theory Division, Physics Department, CERN, CH-1211 Geneva 23 (Switzerland)
- Center for Theoretical Physics, School of Physics, Seoul National University, Seoul 151-747 (Korea, Republic of)
Additional sources of CP violation in the MSSM may affect B-meson mixings and decays, even in scenarios with minimal flavor violation (MFV). We formulate the maximally CP-violating and minimally flavor-violating (MCPMFV) variant of the MSSM, which has 19 parameters, including 6 phases that violate CP. We then develop a manifestly flavor-covariant effective Lagrangian formalism for calculating Higgs-mediated flavor-changing-neutral-current (FCNC) observables in the MSSM at large tan{beta}, and analyze within the MCPMFV framework FCNC and other processes involving B mesons. We include a new class of dominant subleading contributions due to nondecoupling effects of the third-generation quarks. We present illustrative numerical results that include effects of the CP-odd MCPMFV parameters on Higgs and sparticle masses, the B{sub s} and B{sub d} mass differences, and on the decays B{sub s}{yields}{mu}{sup +}{mu}{sup -}, B{sub u}{yields}{tau}{nu}, and b{yields}s{gamma}. We use these results to derive illustrative constraints on the MCPMFV parameters imposed by D0, CDF, Belle, and BABAR measurements of B mesons, demonstrating how a potentially observable contribution to the CP asymmetry in the b{yields}s{gamma} decay may arise in the MSSM with MCPMFV.
- OSTI ID:
- 21023955
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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