Flavor physics within and beyond the Standard Model

Details Flavor physics within and beyond the Standard Model Flavor physics within and beyond the Standard Model

2010-06-10

arxiv.org/abs/1006.2078v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, talk at "Rencontres de Physique de la Vall\'ee d'Aoste", La Thuile, Italy, Feb 28 -- Mar 6, 2010

Scientific paper

I review recent progress in theoretical calculations related to the CKM unitarity triangle. After briefly discussing hints for new physics in B_d-B_d-bar mixing and B_s-B_s-bar mixing I present three topics of MSSM flavor physics: First I discuss new tan-beta-enhanced radiative corrections to flavor-changing neutral current (FCNC) amplitudes which go beyond the familiar Higgs-mediated FCNC diagrams and may enhance the mixing-induced CP asymmetry in B_d -> phi K_S. The second topic is a reappraisal of the idea that flavor violation originates from the soft supersymmetry-breaking terms. Finally I discuss how mu -> e gamma can be used to constrain the flavor structure of the dimension-5 Yukawa interactions which appear in realistic grand unified theories.

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