Can there be any new physics in b -> d penguins

Abstract

We analyze the possibility of observing new physics effects in the $b\to d$ penguin amplitudes. For this purpose, we consider the decay mode $B\to K^0{\bar{K}}^0$, which has only $b\to d$ penguin contributions. Using the QCD factorization approach, we find very tiny CP violating effects in the standard model for this process. Furthermore, we show that the minimal supersymmetric standard model with $LR$ mass insertion and R-parity violating supersymmetric model can provide substantial CP violation effects. Observation of sizable CP violation in this mode would be a clear signal of new physics.

Published version

References in corpus (3)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Comment on ``B->M_1 M_2: Factorization, charming penguins, strong phases, and polarization''
• Waiting for the Discovery of B^0_d -> K^0 \bar K^0

Cited by in corpus (12)

• The Physics of the B Factories
• Observation of B+ --> K0bar K+ and B0 --> K0 K0bar
• Observation of B Decays to Two Kaons
• Probing the unparticle signal in $b\to d$ penguin processes
• $B_s^0-{\bar{B}}_s^0$ mixing and $b\to s$ transitions in isosinglet down quark model
• Measurement of Time-Dependent CP-Violating Parameters in B0 -> K0S K0S decays
• Signature of new physics in B -> phi pi decay
• Evidence for B+ -> K0barK+ and B0 -> K0K0bar, and Measurement of the Branching Fraction and Search for Direct CP Violation in B+ -> K0pi+
• Measurements of B Decays to Two Kaons
• SUSY contributions to CP violations in $b\to s$ and $b\to d$ transitions facing on new data
• Probing new physics in $B\to J/\Psi {\pi }^0$ decay
• Sensitivity of the squark flavor mixing to the CP violation of K, B0 and Bs mesons