Rare decays and CP violation beyond the Standard Model

Abstract

We review the status of rare decays and CP violation in extensions of the Standard Model. We analyze the determination of the unitarity triangle and the model-independent constraints on new physics that can be derived from this analysis. We find stringent bounds on new contributions to K-Kbar and Bd-Bdbar mixing, pointing either to models of minimal flavour violation or to models with new sources of flavour and CP violation in b to s transitions. We discuss the status of the universal unitarity triangle in minimal flavour violation, and study rare decays in this class of models. We then turn to supersymmetric models with nontrivial mixing between second and third generation squarks, discuss the present constraints on this mixing and analyze the possible effects on CP violation in b to s nonleptonic decays and on Bs-Bsbar mixing. We conclude presenting an outlook on Lepton-Photon 2009.

arXiv commentTalk given at Lepton-Photon 2005

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Cited by in corpus (13)

• Model-independent constraints on Delta F=2 operators and the scale of New Physics
• B, D and K decays
• Constraints on new physics from the quark mixing unitarity triangle
• Exploring the flavour structure of the MSSM with rare K decays
• An estimate of the B-->K*gamma form factor
• Flavor Changing Neutral Higgs Bosons in a Supersymmetric Extension based on a $Q_6$ Family Symmetry
• CP violation and limits on New Physics including recent $B_s$ measurements
• Super Flavorsymmetry with Multiple Higgs Doublets
• Hunting the CKM weak phase with time-integrated Dalitz analyses of Bs -> K pi pi decays
• Status of SM calculations of b > s transitions
• b to d d s bar transition and constraints on new physics in B^- decays
• Rare Decays as a Probe for New Physics
• Nondecoupling of Heavy Fermions and a Special Yukawa Texture