NLO contributions to $B\to K{K}^{\ast }$ Decays in the pQCD approach

Abstract

We calculate the important next-to-leading-order (NLO) contributions to the $B\to K{K}^{\ast }$ decays from the vertex corrections, the quark loops, and the magnetic penguins in the perturbative QCD (pQCD) factorization approach. The pQCD predictions for the CP-averaged branching ratios are $Br(B^{+}\to K^{+}{\bar{K}}^{\ast 0})\approx 3.2\times 10^{-7}$, $Br(B^{+}\to {\bar{K}}^0{K}^{\ast +})\approx 2.1\times 10^{-7}$, $Br(B^0/\ov{B}^0 \to K^0\bar{K}^{*0}+\bar{K}^0 K^{*0}) \approx 8.5\times 10^{-7}$, $Br(B^0/\ov{B}^0 \to K^+K^{*-} + K^-K^{*+}) \approx 1.3\times 10^{-7}$, which agree well with both the experimental upper limits and the predictions based on the QCD factorization approach. Furthermore, the CP-violating asymmetries of the considered decay modes are also evaluated. The NLO pQCD predictions for $\acp(B^+ \to K^+\bar{K}^{*0})$ and $\acp(B^+ \to K^{*+}\bar{K}^{0})$ are $\acp^{dir}(K^+\bar{K}^{*0})\approx -6.9 %$ and $\acp^{dir}(K^{*+}\bar{K}^0)\approx 6.5 %$.

arXiv comment29 pages,8 ps/eps figures, modified figures only

References in corpus (35)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• 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
• QCD factorization for B->PP and B->PV decays
• New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules
• Penguin Enhancement and $B\to K\pi$ decays in perturbative QCD
• Branching Ratio and CP Violation of B to pi pi Decays in Perturbative QCD Approach
• Higher Twist Distribution Amplitudes of Vector Mesons in QCD: Formalism and Twist Three Distributions
• B -> M1 M2: Factorization, Charming Penguins, Strong Phases, and Polarization
• 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
• Factorization of heavy-to-light form factors in soft-collinear effective theory
• B to light meson transition form factors calculated in perturbative QCD approach
• Resolution to the B -> pi K puzzle
• Threshold resummation for exclusive B meson decays
• |V_td/V_ts| from B-> V gamma
• Branching ratio and CP asymmetry of $B_s\to {\pi }^{+}{\pi }^{-}$ decays in the 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
• Perturbative QCD factorization of $\pi {\gamma }^{\ast }\to \gamma (\pi )$ and $B\to \gamma (\pi )l\bar{\nu }$
• Penguin-dominated B -> PV decays in NLO perturbative QCD
• Possible Large Direct CP Violations in Charmless B-Decays
• Final state interaction and $B\to KK$ decays in perturbative QCD
• Final State Interaction In $B\to KK$ 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
• Calculation of Magnetic Penguin Amplitudes in B -> phi K Decays using PQCD Approach
• Branching Ratio and CP Asymmetry of $B_s\to \rho (\omega )K$ Decays in the Perturbative QCD Approach
• Branching Ratio and CP Asymmetry of $B_s\to {\pi }^0{\eta }^{(\prime )}$ Decays in the perturbative QCD Approach
• Confined Chiral Solitons in the Spectral Quark Model
• Hadronic B decays
• $B\to K{K}^{\ast }$ Decays in the Perturbative QCD Approach

Cited by in corpus (13)

• Revisiting Charmless Hadronic B_{u,d} Decays in QCD Factorization
• Updating B --> PP, VP decays in the framework of flavor symmetry
• Quasi-two-body decays $B_{(s)}\to K^{\ast }(892)h\to K\pi h$ in perturbative QCD approach
• Anatomy of $B_s\to VV$ decays and effects of next-to-leading order contributions in the perturbative QCD factorization approach
• Charmless two-body $B$ meson decays in perturbative QCD factorization approach
• Hochschild homology, trace map and $\zeta$-cycles
• Revisiting the B {\to} π ρ, π ω Decays in the Perturbative QCD Approach Beyond the Leading Order
• $B \to (\jpsi,η_c) K$ decays in the perturbative QCD approach
• $S$, $P$ and $D$-wave resonance contributions to $B_{(s)}\to {\eta }_c(1S,2S)K\pi$ decays in the perturbative QCD approach
• Anatomy of $B_s\to PV$ decays and effects of next-to-leading order contributions in the perturbative QCD factorization approach
• Perturbative QCD Analysis of Exclusive Processes $e^{+}{e}^{-}\to VP$ and $e^{+}{e}^{-}\to TP$
• Reinvestigating the $B$ $\to$ $PV$ decays by including the contributions from ${\varphi }_{B2}$ with the perturbative QCD approach
• NLO contributions in the pQCD approach