Nonleptonic charmless two-body $B\to AT$ decays

Abstract

In this work we have studied hadronic charmless two-body B decays involving p-wave mesons in final state. We have calculated branching ratios of $B\to AT$ decays (where $A$ and $T$ denotes a ${}^3{P}_1$ axial-vector and a tensor meson, respectively), using $B\to T$ form factors obtained in the covariant light-front (CLF) approach, and the full effective Hamiltonian. We have obtained that $\mathcal{B}(B^0\to a_1^{+}{a}_2^{-})=42.47\times 10^{-6}$, $\mathcal{B}(B^{+}\to a_1^{+}{a}_2^0)=22.71\times 10^{-6}$, $\mathcal{B}(B\to f_1{K}_2^{\ast })=(2.8-4)\times 10^{-6}$ (with $f_1=,f_1(1285),f_1(1420)$) for ${\theta }_{{}^3{P}_1}=53.2^{\circ }$, $\mathcal{B}(B\to f_1(1420)K_2^{\ast })=(5.91-6.42)\times 10^{-6}$ with ${\theta }_{{}^3{P}_1}=27.9^{\circ }$, $\mathcal{B}(B\to K_1{a}_2)=(1.7-5.7)[1-9.3]\times 10^{-6}$ for ${\theta }_{K_1}=-37^{\circ }[-58^{\circ }]$ where $K_1=K_1(1270),K_1(1400)$. It seems that these decays can be measured in experiments at $B$ factories. Additionally, we have found that $\mathcal{B}(B\to K_1(1270)a_2)/\mathcal{B}(B\to K_1(1400)a_2)$ and $\mathcal{B}(B\to f_1(1420)K_2^{\ast })/\mathcal{B}(B\to f_1(1285)K_2^{\ast })$ ratios could be useful to determine numerical values of mixing angles ${\theta }_{K_1}$ and ${\theta }_{{}^3{P}_1}$, respectively.

12 pages

References in corpus (24)

• Light-Cone Distribution Amplitudes of Axial-vector Mesons
• Branching Ratios and Polarization in B-> VV,VA,AA Decays
• $B\to K_1\gamma$ Decays in the Light-Cone QCD Sum Rules
• Covariant light-front approach for heavy quarkonium: decay constants, P \to γγand V \to P γ
• Charmless B decays to a scalar meson and a vector meson
• Hadronic charmless B decays B-> AP
• Charmless Two-body $B(B_s)\to VP$ decays In Soft-Collinear-Effective-Theory
• The study of $B_c^{-}\to X(3872){\pi }^{-}(K^{-})$ Decays in the Covariant Light-Front Approach
• Vector-Tensor and Vector-Vector Decay Amplitude Analysis of B0->phi K*0
• Charmless Hadronic B-Meson Decays
• Study of Polarization in B -> VT Decays
• Observation and Polarization Measurements of B+- ->phi K_1+- and B+- ->phi K_2*+-
• Nonleptonic two-body B-decays including axial-vector mesons in the final state
• Expectations on $B\to (K_0^{\ast }(1430),K_2^{\ast }(1430))\varphi$ decays
• $B^0\to \omega {\eta }^{(\prime )}$ and $\varphi {\eta }^{(\prime )}$ decays in the perturbative QCD approach
• Observation of B-meson decays to b_1 pi and b_1 K
• Observation of B^+ Meson Decays to a1(1260)^+ K^0 and B^0 to a1(1260)^- K^+
• Branching Ratios and CP Asymmetries of B \to a_1(1260) πand a_1(1260) K Decays
• $B\to K{K}^{\ast }$ Decays in the Perturbative QCD Approach
• Evidence for charged B meson decays to a1(1260)+/- pi0 and a1(1260)0 pi+/-
• Nonleptonic charmless two-body B decays involving tensor mesons in the covariant light-front approach
• Study of B Meson Decays with Excited eta and eta' Mesons
• Observation of B+->b_1+K0 and search for B-meson decays to b_10K0 and b_1pi0
• Charmless hadronic $B$ and $B_s$ decays in perturbative QCD approach

Cited by in corpus (2)

• Exclusive semileptonic and nonleptonic decays of B mesons to orbitally excited light mesons
• Tensor mesons produced in tau lepton decays