B-Meson Observables in the Maximally CP-Violating MSSM with Minimal Flavour Violation

Abstract

Additional sources of CP violation in the MSSM may affect B-meson mixings and decays, even in scenarios with minimal flavour violation (MFV). We formulate the maximally CP-violating and minimally flavour-violating (MCPMFV) variant of the MSSM, which has 19 parameters, including 6 phases that violate CP. We then develop a manifestly flavour-covariant effective Lagrangian formalism for calculating Higgs-mediated 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 non-decoupling 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_s and B_d mass differences, and on the decays B_s --> mu+ mu-, B_u --> tau nu and b --> 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 --> s gamma decay may arise in the MSSM with MCPMFV.

47 pages, 8 eps figures, comments and references added, accepted for publication in Physical Review D, Eq.(3.2) corrected

References in corpus (4)

• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• Flavour physics at large tan(beta) with a Bino-like LSP
• Solving the SUSY Flavour and CP Problems with SU(3) Family Symmetry
• Non-Commutative (Softly Broken) Supersymmetric Yang-Mills-Chern-Simons

Cited by in corpus (11)

• Electric Dipole Moments in the MSSM Reloaded
• Supersymmetric models with minimal flavour violation and their running
• CPsuperH2.0: an Improved Computational Tool for Higgs Phenomenology in the MSSM with Explicit CP Violation
• The One-Loop Effective Potential in Non-Linear Gauges
• Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta)
• Supersymmetry beyond minimal flavour violation
• Neutral Higgs bosons in the MNMSSM with explicit CP violation
• Measuring B -> tau nu and B_c -> tau nu at the Z peak
• Testing the CKM Picture of Flavour and CP Violation in Rare K and B Decays and Particle-Antiparticle Mixing
• SUSY beyond minimal flavour violation
• K^0 - \bar K^0, B^0 - \bar B^0 mixings in the MSSM with explicit CP violation in the Higgs sector