Search for New Physics in CP-violating B Decays

Abstract

We consider three possible scenarios of new physics in B^0_d-\bar{B}^0_d mixing and propose a simple framework for analyzing their effects. This framework allows us to study the CP asymmetry in semileptonic B_d decays ({\cal A}_{SL}) and those in nonleptonic transitions such as B_d \to J/ψK_S and B_d \to π^+π^-. Numerically we find that new physics may enhance the magnitude of {\cal A}_{SL} up to the percent level within the appropriate parameter space. So measurements of {\cal A}_{SL} and its correlation with other CP asymmetries will serve as a sensitive probe for new physics in B^0_d-\bar{B}^0_d mixing.

Latex 18 pages

References in corpus (3)

• A Model Independent Construction of the Unitarity Triangle
• Removing Discrete Ambiguities in CP Asymmetry Measurements
• Lepton CP Asymmetries in B Decays

Cited by in corpus (16)

• CP Violation and the CKM Matrix: Assessing the Impact of the Asymmetric B Factories
• Probing SUSY-induced CP violations at B factories
• Implications of the CP asymmetry in semileptonic B decay
• CP asymmetry in B --> phi K_S decays in left-right models and its implications on B_s decays
• CP Violating Lepton Asymmetries from B Decays and Their Implication for Supersymmetric Flavor Models
• CP Violation in B_d \to D^+D^-, D^{*+}D^-, D^+D^{*-} and D^{*+}D^{*-} Decays
• Constraining New Physics with the CDF Measurement of CP Violation in $B\to \psi K_S$
• CP Asymmetries in B_d \to D^{*+}D^{*-} and B_s \to D^{*+}_s D^{*-}_s Decays: P-wave Dilution, Penguin and Rescattering Effects
• CP Asymmetries in B_s Decays and Spontaneous CP violation
• Supersymmetry and CP Violating Asymmetries in $B_{d,s}$ Decays
• Analysis of the Three-Body $B\to D^{+}{D}^{-}{\pi }^0$ Decay
• CP Violating Lepton Asymmetry from B Decays in Supersymmetric Grand Unified Theories
• Constraining the CKM Parameters using CP Violation in semi-leptonic B Decays
• Probing new physics in $B\to J/\Psi {\pi }^0$ decay
• New Time Distributions of D^0-\bar{D}^0 or B^0-\bar{B}^0 Mixing and CP Violation
• A Novel Possibility to Determine the CP-violating Phase γand the B^0_s-\bar{B}^0_s Mixing Parameter y_s at the Υ(5S) Resonance