The $B_c\to D^{(\ast )}T$ decays in perturbative QCD approach

Abstract

In this work, we investigate those $B_c\to D^{(\ast )}T$ decays in perturbative QCD approach, based on $k_T$ factorization, where T denotes a light tensor meson. For all decays considered in this work, there are no contributions from factorizable emission diagrams because the emitted meson is the tensor meson. We find that the annihilation amplitudes are dominant in these decays due to the large Cabibbo-Kobayashi-Maskawa elements, which are only calculable in the pQCD approach. The numerical results show that the predictions for the branching ratios of most decays are in the order of $10^{-6}$ or even bigger, which can be observed in the ongoing experiments. We also predict large percentage of transverse polarizations in those W annihilation diagram dominant $B_c\to D^{\ast }T$ decay channels.

24 pages, 1 figures

References in corpus (19)

• Heavy quarkonium: progress, puzzles, and opportunities
• High Precision determination of the pi, K, D and D_s decay constants from lattice QCD
• Charmless non-leptonic B_s decays to PP, PV and VV final states in the pQCD approach
• Measurement of the Bc meson mass in the exclusive decay Bc --> Jpsi Pi
• The $B(B_s)\to D_{(s)}P$, $D_{(s)}V$, $D_{(s)}^{\ast }P$ and $D_{(s)}^{\ast }V$ decays in the perturbative QCD approach
• Charmless Hadronic B Decays into a Tensor Meson
• B to tensor meson form factors in the perturbative QCD approach
• Study of Bc --> J/psi pi, etac pi decays with perturbative QCD approach
• Study of Bc -> BP,BV Decays with QCD Factorization
• Study of $B_c^{-}$ $\to$ $J/\psi {\pi }^{-}$, ${\eta }_c{\pi }^{-}$ Decays with QCD Factorization
• The two-body B_c {\to} D^{(*)}_{(s)}P, D^{(*)}_{(s)}V decays in the Perturbative QCD Approach
• Nonleptonic two-body charmless B decays involving a tensor meson in the Perturbative QCD Approach
• Decays of bottom mesons emitting pseudoscalar and tensor mesons in ISGW II model
• The $B(B_s)\to D_{(s)}({\bar{D}}_{(s)})T$ and $D_{(s)}^{\ast }({\bar{D}}_{(s)}^{\ast })T$ decays in perturbative QCD approach
• Study of the pure annihilation $B_c\to A_2{A}_3$ decays
• Some Results on Vector and Tensor Meson Mixing in a Generalized QCD-like Theory
• Decays of bottom mesons emitting tensor meson in final state using ISGW II model
• Nonleptonic charmless two-body B decays involving tensor mesons in the covariant light-front approach
• Determining CP violation angle $\gamma$ with B decays into a scalar/tensor meson

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