Annihilation-Type Charmless Radiative Decays of B Meson in Non-universal Z^\prime Model

Abstract

We study charmless pure annihilation type radiative B decays within the QCD factorization approach. After adding the vertex corrections to the naive factorization approach, we find that the branching ratios of ${\bar{B}}_d^0\to \varphi \gamma$, ${\bar{B}}_s^0\to {\rho }^0\gamma$ and ${\bar{B}}_s^0\to \omega \gamma$ within the standard model are at the order of $\mathcal{O}(10^{-12})$, $\mathcal{O}(10^{-10})$ and $\mathcal{O}(10^{-11})$, respectively. The smallness of these decays in the standard model makes them sensitive probes of flavor physics beyond the standard model. To explore their physics potential, we have estimated the contribution of $Z^{\prime }$ boson in the decays. Within the allowed parameter space, the branching ratios of these decay modes can be enhanced remarkably in the non-universal $Z^{\prime }$ model: The branching ratios can reach to $\mathcal{O}(10^{-8})$ for ${\bar{B}}_s^0\to {\rho }^0(\omega )\gamma$ and $\mathcal{O}(10^{-10})$ for the ${\bar{B}}_d^0\to \varphi \gamma$, which are large enough for LHC-b and/or Super B-factories to detect those channels in near future. Moreover, we also predict large CP asymmetries in suitable parameter space. The observation of these modes could in turn help us to constrain the $Z^{\prime }$ mass within the model.

arXiv comment13 pages, 8 figures

References in corpus (31)

• 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
• The Physics of Heavy Z' Gauge Bosons
• Higher Twist Distribution Amplitudes of Vector Mesons in QCD: Formalism and Twist Three Distributions
• Flavor Changing Effects in Theories with a Heavy Z' Boson with Family Non-Universal Couplings
• Asymptotics of Heavy-Meson Form Factors
• Improved Constraints on Z' Bosons from Electroweak Precision Data
• B->V gamma Beyond QCD Factorisation
• The Radiative Decays B -> V gamma at Next-to-Leading Order in QCD
• GIM Violation and New Dynamics of the Third Generation
• Solution to the B -> pi K Puzzle in a Flavor-Changing Z' Model
• Z' Mediated Flavor Changing Neutral Currents in B Meson Decays
• Factorization in leptonic radiative B -> gamma eνdecays
• Factorization, the light-cone distribution amplitude of the B-meson and the radiative decay B -> gamma l nu_l
• $b\to s$ Transitions in Family-dependent $U(1{)}^{\prime }$ Models
• Constraints on flavor-changing Z' models by B_s mixing, Z' production, and B_s -> μ^+ μ^-
• Family Non-universal $U(1{)}^{\prime }$ Gauge Symmetries and $b\to s$ Transitions
• B->gamma e nu Transitions from QCD Sum Rules
• Flavor Changing Effects in Family Nonuniversal Z' Models
• Z', new fermions and flavor changing processes, constraints on E${}_6$ models from $\mu$ --> eee
• Nonuniversal $Z^{\prime }$ couplings in B decays
• Constraints on the nonuniversal Z^\prime couplings from B\toπK, πK^{\ast} and ρK Decays
• Explaining B \to K pi anomaly with non-universal Z' boson
• Testing the Non-universal Z^\prime Model in Bs -> ϕπ^0 Decay
• Study of $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ Decays in the Family Non-universal $Z^{\prime }$ Models
• CP phase of nonuniversal $Z^{\prime }$ on $\sin {\varphi }_s^{J/\Psi \varphi }$ and T-odd observables of ${\bar{B}}_q\to V_q{\ell }^{+}{\ell }^{-}$
• Annihilation Type Radiative Decays of $B$ Meson in Perturbative QCD Approach
• The Rare Radiative Annihilation Decays ${\bar{B}}_{s,d}^0\to J/\psi \gamma$
• The rare ${\bar{B}}_d^0\to \varphi \gamma$ decays in Standard Model and as a probe of R-parity violation
• Flavorful $Z^{\prime }$ signatures at LHC and ILC

Cited by in corpus (17)

• Exclusive radiative B-meson decays within the aligned two-Higgs-doublet model
• B -> K1 l^+l^- Decays in a Family Non-universal Z' Model
• $B_s^0-{\bar{B}}_s^0$ mixing in a family non-universal $Z^{\prime }$ model revisited
• Exclusive radiative B-meson decays within minimal flavour violating 2HDMs
• FCNC, CP violation and implications for some rare decays in an SU(4)_L X U(1)_X extension of the standard model
• Implications of Family Nonuniversal $Z^{\prime }$ Model on B -->K_0^* pi Decays
• The effects of a family non-universal Z-prime boson on B--->pipi decays
• Study of semileptonic decays $B\to \pi l^{+}{l}^{-}$ and $B\to \rho l^{+}{l}^{-}$ in non-universal Z' model
• Search for the decay B0 -> phi gamma
• Imprints of CP violation asymmetries in rare ${\Lambda }_b\to \Lambda {\ell }^{+}{\ell }^{-}$ decay in family non-universal $Z^{\prime }$ model
• LHCb anomaly in $\mathbf{B}\to {\mathbf{K}}^{\ast }{\mathbf{\mu }}^{+}{\mathbf{\mu }}^{-}$ optimised observables and potential of ${\mathbf{Z}}^{\prime }$ Model
• Analysis of ${\Lambda }_b\to \Lambda l^{+}{l}^{-}$ rare decays in a non-universal $Z^{\prime }$ model
• Effects of neutral $Z^{\prime }$ boson in $B_s\to \varphi {\ell }^{+}{\ell }^{-}$ decay with polarized $\varphi$ and the unpolarized and polarized $CP$ violation asymmetry
• Implication of the Fourth Generation Standard Model to the Lepton Polarization asymmetries in the $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ Decay
• Analysis of Angular Observables of ${\Lambda }_b\to \Lambda (\to p\pi ){\mu }^{+}{\mu }^{-}$ Decay in Standard and $Z^{\prime }$ Models
• Effects from Hadronic Structure of Photon on $B\to \varphi \gamma$ and $B_s\to ({\rho }^0,\omega )\gamma$ Decays
• Recent results from the Belle experiment