Branching ratio and CP violation of $B_c\to DK$ decays in the perturbative QCD approach

Abstract

In this paper, we calculate the branching ratio and direct CP asymmetry parameter of $B_c^{\pm }\to D^0{K}^{\pm }$ in the framework of perturbative QCD approach based on $k_T$ factorization. Besides the usual factorizable diagrams, both non-factorizable and annihilation type contributions are taken into account. We find that (a) the branching ratio is at the order of $10^{-5}$; (b) the tree annihilation diagrams and the penguin diagrams dominate the total contribution; and (c) the direct CP asymmetry is about 7%, which can be tested in the Large Hadron Collider beauty experiments (LHC-b) at CERN.

15 pages, 3 figures

References in corpus (9)

• Exclusive semileptonic and nonleptonic decays of the Bc meson
• Semileptonic $B_c$ decays and Charmonium distribution amplitude
• Study of Bc --> J/psi pi, etac pi decays with perturbative QCD approach
• Bc Meson Formfactors and Bc-->PV Decays Involving Flavor Dependence of Transverse Quark Momentum
• Study of Bc -> BP,BV Decays with QCD Factorization
• Study of $B_c^{-}$ $\to$ $J/\psi {\pi }^{-}$, ${\eta }_c{\pi }^{-}$ Decays with QCD Factorization
• B Physics at LHCb
• $B_c(B)\to Dl\tilde{\nu }$ form factors in Light-Cone Sum Rules and the $D$-meson distribution amplitude
• Effects of hadronic loops on the direct CP violation of $B_c$

Cited by in corpus (10)

• S-wave ground state charmonium decays of $B_c$ mesons in the perturbative QCD approach
• The pure annihilation type B_c to M_2 M_3 decays in the perturbative QCD approach
• The $B_c\to \psi (2S)\pi$, ${\eta }_c(2S)\pi$ decays in the perturbative QCD approach
• The two-body B_c {\to} D^{(*)}_{(s)}P, D^{(*)}_{(s)}V decays in the Perturbative QCD Approach
• Observation of $B_c^{+}\to D^0{K}^{+}$ decays
• Study of B_{c}\to J/ψK decays in the perturbative QCD approach
• Weak decays of $B_c$ into two hadrons under flavor SU(3) symmetry
• CP violation in non-leptonic $B_c$ decays to excited final states
• The two-body hadronic decays of $B_c$ meson in the perturbative QCD approach: A short review
• Evaluation of the $B_c^{+}\to D^0{K}^{+}$ decay by the factorization approaches and applying the effects of the final state interaction