Is there New Physics in B Decays ?

Abstract

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.

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

References in corpus (12)

• Direct Limits on the Bs Oscillation Frequency
• Rates, Polarizations, and Asymmetries in Charmless Vector-Vector B Meson Decays
• Measurement of Branching Fractions and Polarization in B -> phi K^{(*)} Decays
• Measurements of Branching Fractions and CP-violating Asymmetries in B0->pi+ pi-, K+ pi-, K+ K- Decays
• Triple-Product Correlations in B -> V1 V2$ Decays and New Physics
• The B -> pi K Puzzle and New Physics
• R-parity-violating SUSY and CP violation in B --> phi K_s
• Quasi-Inclusive and Exclusive decays of $B$ to ${\eta }^{\prime }$
• Methods for Measuring New-Physics Parameters in B Decays
• $B_s$ Mixing and New Physics in hadronic $b\to s\bar{q}q$ transitions
• The 2-3 symmetry: Flavour Changing $b$, $\tau$ Decays and Neutrino Mixing
• CP Violation in Quasi-inclusive $B\to K^{(\ast )}X$ Decays