Decay of axial-vector mesons into VP and P$\gamma$

Abstract

We propose a phenomenological Lagrangian for the decay of the SU(3) nonets of the axial-vector mesons of $J^{PC}=1^{+-},1^{++}$ into a vector meson and a pseudoscalar constructed with tensor fields for the vector and axial-vector mesons. The formulation leads to a good reproduction of the different decay branching ratios and assuming vector meson dominance (VMD) it also leads to good results for the radiative decay of the $a_1$ into pion and photon, and in agreement with the structure proposed in the chiral tensor formulation of radiative decay of axial-vector mesons. The two SU(3) parameters and the mixing angle of $K_{1A}$ and $K_{1B}$ needed to give the physical $K_1(1270)$ and $K_1(1400)$ resonances are also determined.

arXiv comment17 pages, 1 figure; version accepted in Phys. Rev. D

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Cited by in corpus (35)

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• Clues for the existence of two $K_1(1270)$ resonances
• Decays of tensor mesons and the tensor glueball in an effective field approach
• Unitary chiral dynamics in J/Psi to VPP decays and the role of scalar mesons
• On the radiative decays of light vector and axial-vector mesons
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• Revising the $f_1(1420)$ resonance
• The $a_0(980)$ and $\Lambda (1670)$ in the ${\Lambda }_c^{+}\to {\pi }^{+}\eta \Lambda$ decay
• Axial meson exchange and the $Z_c(3900)$ and $Z_{cs}(3985)$ resonances as heavy hadron molecules
• Isospin violation in J/Psi to phi pi0 eta decay and the f0-a0 mixing
• The strong decays of K1 resonances
• Quantum loops in radiative decays of the $a_1$ and $b_1$ axial-vector mesons
• Axial vectors in DarkCast
• Strange axial-vector mesons mixing angle
• Tau decay and the structure of the a1
• Photoproduction of ${\Lambda }^{\ast }$ and ${\Sigma }^{\ast }$ resonances with $J^P=1/2^{-}$ off the proton
• The $a_0(980)$ in the single Cabibbo-suppressed process ${\Lambda }_c\to {\pi }^0\eta p$
• Comprehensive study of light axial vector mesons with the presence of triangle singularity
• Final state interactions in the decays J/psi->VPP
• Radiative decay into $\gamma P$ of the low lying axial-vector mesons
• Stealth QCD-like Strong Interactions and the t-tbar Asymmetry
• Simultaneous description of the $e^{+}{e}^{-}\to J/\psi \pi \pi (K\bar{K})$ processes
• The role of charged exotic states in $e^{+}{e}^{-}\to \psi (2S){\pi }^{+}{\pi }^{-}$
• Mixing and $m_q$ dependence of axial vector mesons in the Coulomb gauge QCD model
• Production of axial-vector mesons at $e^{+}{e}^{-}$ collisions with double-tagging as a way to constrain the axial meson LbL contribution to muon g-2 and/or hyperfine splitting of muonic hydrogen
• Polarizabilities from kaon Compton scattering
• Constituent quark axial current couplings to light vector mesons in the vacuum and with a weak magnetic field
• Study of the axial-vector and tensor resonant contributions to the $D\to VP{\ell }^{+}{\nu }_{\ell }$ decays based on SU(3) flavor analysis
• Exotic properties of N^*(1895) and its impact on photoproduction of light hyperons
• Flavor SU(3) analysis of the charmless semileptonic $B\to PV{\ell }^{+}{\nu }_{\ell }$ decays
• Radiative vector meson decay