Penguin Effects on K Pi and PiPi Decays of the $B$ Meson

Abstract

We give the detailed analyses for the gluonic-penguin effect on the $\kp$ and $\pp$ decays of the $B$ meson. In the standard model, it is shown that the ratio $BR(B\A\kp)/BR(B\A\pp)$ takes the value $0.5\sim 3.0$ with the strongly depending on the CP violating phase $\varphi$ and the KM matrix element $|V_{ub}|$. We obtain the constraint on the form factor by using the experimental branching ratio. It is also found that, in the two-Higgs-doublet model, the charged Higgs contribution which could enhance the $B\A X_s\r$ decay does not a sizable effect on our processes. The effect of the final state interaction on these processes is also discussed.

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References in corpus (1)

• Large Penguin effects in the CP Asymmetry of B0d ->pi+pi-

Cited by in corpus (6)

• Decays of $B$ Mesons to Two Light Pseudoscalars
• Broken SU(3) Symmetry in Two-Body B Decays
• CP asymmetry Relations Between ${\bar{B}}^0\to \pi \pi$ and ${\bar{B}}^0\to \pi K$ Rates
• Mixing-Induced CP Violation in the Decay $B_d\to K^0{\bar{K}}^0$ within the Standard Model
• A Determination of the CKM-angle $\alpha$ using Mixing-induced CP Violation in the Decays $B_d\to {\pi }^{+}{\pi }^{-}$ and $B_d\to K^0{\bar{K}}^0$
• Using B_s^0 Decays to Determine the CP Angles αand γ