Time-dependent CP-violations of B(Bs) decays in the perturbative QCD approach

TL;DR

This paper analyzes B meson decay modes and CP violation parameters using perturbative QCD, providing theoretical predictions that align with experimental data and guiding future experiments like LHCb.

Contribution

It offers a detailed perturbative QCD calculation of B meson decay branching ratios and CP violation parameters, including new predictions for observables relevant to future experiments.

Findings

Branching ratios agree with experimental data.

CP asymmetry predictions match observations.

Provides new observable predictions for future experiments.

Abstract

We study the decay modes of B_{s}^{0}(\bar{B}_{s}^{0})-->D_{s}^{\pm} K^{\mp}, B_{s}^{0}(\bar{B}_{s}^{0})-->D^{\pm} \pi^{\mp} and B^{0}(\bar{B}^{0})-->D^{\pm} \pi^{\mp} in the perterbative QCD approach based on k_T factorization, including the branching ratios and CP violation parameters which provide a clear way to extract the Cabibbo-Kobayashi-Maskawa angle \gamma. Our results of branching ratios of B_{s}^{0}(\bar{B}_{s}^{0})-->D_{s}^{\pm} K^{\mp} and B^{0}(\bar{B}^{0})--> D^{\pm} \pi^{\mp} and the CP asymmetry of B^{0}(\bar{B}^{0})--> D^{\pm} \pi^{\mp} agree well with the experimental data. We also give the predictions of the other observables, which provide some guidance for experiments in the future, especially for LHCb experiment.