Study of pure annihilation type decays $B\to D_s^{\ast }K$

Abstract

In this work, we calculate the rare decays $B^0\to D_s^{\ast -}{K}^{+}$ and $B^{+}\to D_s^{\ast +}{\bar{K}}^0$ in perturbative QCD approach with Sudakov resummation. We give the branching ratio of $10^{-5}$ for $B^0\to D_s^{\ast -}{K}^{+}$, which will be tested soon in $B$ factories. The decay $B^{+}\to D_s^{\ast +}{\bar{K}}^0$ has a very small branching ratio at $\mathcal{O}(10^{-8})$, due to the suppression from CKM matrix elements $|V_{ub}^{\ast }{V}_{cd}|$. It may be sensitive to new physics contributions.

arXiv comment14 pages, 1 figure

References in corpus (24)

• Weak Decays Beyond Leading Logarithms
• QCD Factorization for $B\to \pi \pi$ Decays: Strong Phases and CP Violation in the Heavy Quark Limit
• QCD factorization for exclusive, non-leptonic B meson decays: General arguments and the case of heavy-light final states
• Penguin Enhancement and $B\to K\pi$ decays in perturbative QCD
• Fat penguins and imaginary penguins in perturbative QCD
• Branching Ratio and CP Violation of B to pi pi Decays in Perturbative QCD Approach
• Experimental Tests of Factorization in Charmless Non-Leptonic Two-Body B Decays
• Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Nonsinglet Case
• B->pi and B->K Transitions from QCD Sum Rules on the Light-Cone
• Leading-power contributions to $B\to \pi ,\rho$ transition form factors
• Charmless Hadronic Two-body Decays of B_u and B_d Mesons
• B to light meson transition form factors calculated in perturbative QCD approach
• $B\to \pi \rho$, $\pi \omega$ Decays in Perturbative QCD Approach
• Perturbative QCD analysis of $B\to \varphi K$ decays and Power counting
• Perturbative QCD analysis of $B\to \varphi K^{\ast }$ decays
• Nonfactorizable soft gluons in nonleptonic heavy meson decays
• Perturbative QCD factorization of $\pi {\gamma }^{\ast }\to \gamma (\pi )$ and $B\to \gamma (\pi )l\bar{\nu }$
• Possible Large Direct CP Violations in Charmless B-Decays
• B -> K eta(') decay in perturbative QCD
• Observation of Ds+ K- and evidence for Ds+ pi- final states in neutral B decays
• Calculation of pure annihilation type decay $B^{+}\to D_s^{+}\varphi$
• Understanding the penguin amplitude in $B\to \varphi K$ decays
• How well can we predict CP asymmetry in $B\to \pi \pi$, $K\pi$ decays?
• Charmless Nonleptonic Two-Body B Decays in the Factorization Approach

Cited by in corpus (33)

• 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
• Nonfactorizable contributions to $B\to D^{(\ast )}M$ decays
• Strong Phases and Factorization for Color Suppressed Decays
• Branching ratio and CP asymmetry of $B_s\to {\pi }^{+}{\pi }^{-}$ decays in the perturbative QCD approach
• Improved Estimates of The $B_{(s)}\to VV$ Decays in Perturbative QCD Approach
• Study of $K_0^{\ast }(1430)$ and $a_0(980)$ from $B\to K_0^{\ast }(1430)\pi$ and $B\to a_0(980)K$ Decays
• Branching Ratio and CP Asymmetry of $B\to \rho {\eta }^{(\prime )}$ Decays in the Perturbative QCD Approach
• Branching Ratio and CP Asymmetry of $B\to \pi {\eta }^{(\prime )}$ Decays in the Perturbative QCD Approach
• Rare Decays $B^0\to D_s^{(\ast )+}{D}_s^{(\ast )-}$ and $B_s^0\to D^{(\ast )+}{D}^{(\ast )-}$ in Perturbative QCD Approach
• Study of color suppressed modes $B^0\to {\bar{D}}^{(\ast )0}{\eta }^{(\prime )}$
• Decays of $B$ meson to two charmed mesons
• The two-body B_c {\to} D^{(*)}_{(s)}P, D^{(*)}_{(s)}V decays in the Perturbative QCD Approach
• The $B_c\to D^{(\ast )}T$ decays in perturbative QCD approach
• Nonleptonic two-body charmless B decays involving a tensor meson in the Perturbative QCD Approach
• Branching Ratio and CP Asymmetry of $B^0\to {\eta }^{(\prime )}{\eta }^{(\prime )}$ Decays in the Perturbative QCD Approach
• 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
• Search of $D_{sJ}^{\ast }$ mesons in $B$ meson decays
• Quasi-two-body decays $B\to D{K}^{\ast }(892)\to DK\pi$ in the perturbative QCD approach
• The double charm decays of $B_c$ Meson in the Perturbative QCD Approach
• Two-body charmed B(Bs) decays involving a light scalar meson
• Rare decays of B-> J/ψD^(*) and B->η_c D^(*)in pQCD Approach
• Study of $B_c\to DS$ Decays in PQCD Approach
• Study Pure Annihilation Decays $B_s^0({\bar{B}}_s^0)\to D^{\pm }{\pi }^{\mp }$ in PQCD Approach
• The role of $D_{(s)}^{\ast }$ and their contributions in $B_{(s)}\to D_{(s)}h{h}^{\prime }$ decays
• $B\to D{K}_{0,2}^{\ast }$ Decays: PQCD analysis to determine CP violation phase angle $\gamma$
• Perturbative QCD Analysis of Exclusive Processes $e^{+}{e}^{-}\to VP$ and $e^{+}{e}^{-}\to TP$
• Time-dependent CP-violations of B(Bs) decays in the perturbative QCD approach
• A study on the radiative dileptonic decays $B^0(B_s)\to \gamma {\ell }^{+}{\ell }^{-}$
• Branching ratios of $B^{+}\to D^{(\ast )+}{K}^{(\ast )0}$ decays in perturbative QCD approach
• Study of W-exchange Mode $D^0\to \varphi {\bar{K}}^0$
• Study of Pure Annihilation Decays B_{d,s} \to D^{0} \bar D^{0}
• The B\to D_s^{(*)}πdecays in the perturbative QCD
• The B\to D_s^{(*)}η^{(\prime)} decays in the perturbative QCD