Is there New Physics in B Decays ?

Details Is there New Physics in B Decays ? Is there New Physics in B Decays ?

2007-01-21

arxiv.org/abs/hep-ph/0701172v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, Talk presented at Theory Canada II, Perimeter Institute, Waterloo, Canada. New references added and updated

Scientific paper

10.1139/P07-066

Rare decays of the $B$ meson are sensitive to new physics effects. Several experimental results on these decays have been difficult to understand within the standard model (SM) though more precise measurements and a better understanding of SM theory predictions are needed before any firm conclusions can be drawn. In this talk we try to understand the present data assuming the presence of new physics. We find that the data points to new physics of an extended Higgs sector and we present a two higgs doublet model with a 2-3 flavor symmetry in the down type quark sector that can explain the deviations from standard model reported in several rare B decays.

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