$B^0\to \omega {\eta }^{(\prime )}$ and $\varphi {\eta }^{(\prime )}$ decays in the perturbative QCD approach

Abstract

We calculate the branching ratios and CP-violating asymmetries for $B^0\to \omega \eta$, $\omega {\eta }^{\prime }$, $\varphi \eta$ and $\varphi {\eta }^{\prime }$ decays in the perturbative QCD (pQCD) factorization approach. The pQCD predictions for the CP-averaged branching ratios are $Br(B^0 \to ωη) = \left (2.7 ^{+1.1}_{-1.0})\times 10^{-7}$, $Br(B^0 \to ωη^\prime) = \left (0.75 ^{+0.37}_{-0.33}) \times 10^{-7}$, and $Br(B^0 \to ϕη) = \left (6.3 ^{+3.3}_{-1.9}) \times 10^{-9}$, $Br(B^0 \to ϕη^{\prime}) = \left (7.3^{+3.5}_{-2.6}) \times 10^{-9}$ which are consistent with currently available experimental upper limits. The inclusion of the gluonic contribution can change the branching ratios of $B\to \omega (\varphi ){\eta }^{\prime }$ decays by about 10%. The direct CP-violating asymmetries for $B^0\to \omega \eta$ and $\omega {\eta }^{\prime }$ decays are generally large in size.

arXiv comment23 pages, 4 ps/eps figures, RevTex, typos removed, minor corrections

References in corpus (39)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• 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 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
• Mixing and Decay Constants of Pseudoscalar Mesons
• B_{d,s}->rho, omega, K*, phi Decay Form Factors from Light-Cone Sum Rules Revisited
• 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
• Theoretical Update of Pseudoscalar Meson Distribution Amplitudes of Higher Twist: The Nonsinglet Case
• Higher-Twist Distribution Amplitudes of the K Meson in QCD
• Quark structure of pseudoscalar mesons
• Mixing and Decay Constants of Pseudoscalar Mesons: The Sequel
• 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
• Flavor-Singlet B-Decay Amplitudes in QCD Factorization
• Factorization of heavy-to-light form factors in soft-collinear effective theory
• Extraction of $V_{ub}$ from the Decay $B\to \pi l\nu$
• B to light meson transition form factors calculated in perturbative QCD approach
• Perturbative QCD Analysis of $B$ Meson Decays
• Factorization theorems, effective field theory, and nonleptonic heavy meson decays
• Study of the eta-eta' system in the two mixing angle scheme
• Three-Scale Factorization Theorem and Effective Field Theory
• Effective Hadron Dynamics: From Meson Masses to the Proton Spin Puzzle
• Nonfactorizable soft gluons in nonleptonic heavy meson decays
• The systematic study of $B\to \pi$ form factors in pQCD approach and its reliability
• Sudakov effects in B -> pi l nu form factors
• B -> K eta(') decay in perturbative QCD
• Gluonic contribution to $B\to {\eta }^{(\prime )}$ form factors
• On the ${\eta }^{\prime }$ Gluonic Admixture
• 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
• Study of $B\to K^{\ast }\rho ,K^{\ast }\omega$ Decays with Polarization in Perturbative QCD Approach
• Branching Ratio and Polarization of $B\to \rho (\omega )\rho (\omega )$ Decays in Perturbative QCD Approach
• Branching Ratio and CP Asymmetry of $B^0\to {\eta }^{(\prime )}{\eta }^{(\prime )}$ Decays in the Perturbative QCD Approach
• An Analysis of the Inclusive Decay ${\rm Y}(1S)\to {\eta }^{\prime }X$ and Constraints on the ${\eta }^{\prime }$-Meson Distribution Amplitudes
• Branching Ratio and CP Asymmetry of $B_s\to {\pi }^0{\eta }^{(\prime )}$ Decays in the perturbative QCD Approach

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