Unified study of $J/\psi \to PV$, $P{\gamma }^{(\ast )}$ and light hadron radiative processes

Abstract

Within the framework of the effective Lagrangian approach, we perform a thorough analysis of the $J/\psi \to P\gamma ({\gamma }^{\ast })$, $J/\psi \to VP$, $V\to P\gamma ({\gamma }^{\ast })$, $P\to V\gamma ({\gamma }^{\ast })$ and $P\to \gamma \gamma ({\gamma }^{\ast })$ processes, where $V$ stand for light vector resonances, $P$ stand for light pseudoscalar mesons, and ${\gamma }^{\ast }$ subsequently decays into lepton pairs. The processes with light pseudoscalar mesons $\eta$ and ${\eta }^{\prime }$ are paid special attention to and the two-mixing-angle scheme is employed to describe their mixing. The four mixing parameters both in singlet-octet and quark-flavor bases are updated in this work. We confirm that the $J/\psi \to \eta ({\eta }^{\prime }){\gamma }^{(\ast )}$ processes are predominantly dominated by the $J/\psi \to {\eta }_c{\gamma }^{\ast }\to \eta ({\eta }^{\prime }){\gamma }^{(\ast )}$ mechanism. Predictions for the $J/\psi \to P{\mu }^{+}{\mu }^{-}$ are presented. A detailed discussion on the interplay between electromagnetic and strong transitions in the $J/\psi \to VP$ decays is given.

arXiv comment29 pages, 8 figures and 6 tables. References added. Accepted by Phys.Rev.D

References in corpus (47)

• Mixing and Decay Constants of Pseudoscalar Mesons
• Quark structure of pseudoscalar mesons
• Mixing and Decay Constants of Pseudoscalar Mesons: The Sequel
• Large N_c in chiral perturbation theory
• Physics with the KLOE-2 experiment at the upgraded DA$\varphi$NE
• On the 1/N expansion in chiral perturbation theory
• Radiative Transitions in Charmonium from Lattice QCD
• Phenomenological Evidence for the Gluon Content of $\eta$ and ${\eta }^{\prime }$
• Study of the eta-eta' system in the two mixing angle scheme
• Study of the electromagnetic transition form-factors in η-> μ^+μ^-γand ω-> μ^+μ^-π^0 decays with NA60
• Chiral Effective Lagrangian in the large-Nc limit: the nonet case
• Odd-intrinsic-parity processes within the Resonance Effective Theory of QCD
• omega --> pi0 gamma* and phi --> pi0 gamma* Transition form factors in dispersion theory
• Resonances from meson-meson scattering in U(3) CHPT
• Resonance saturation in the odd-intrinsic parity sector of low-energy QCD
• Chiral dynamics in form factors, spectral-function sum rules, meson-meson scattering and semilocal duality
• The decay pi0 to gamma gamma to next to leading order in Chiral Perturbation Theory
• Meson resonances, large N_c and chiral symmetry
• Spectral distribution for the decay tau -> nu_tau K pi
• Composition of the Pseudoscalar Eta and Eta' Mesons
• Mixing of eta-eta' Mesons in J/psi Decays into a Vector and a Pseudoscalar Meson
• The VV'P form factors in resonance chiral theory and the pi-eta-eta' light-by-light contribution to the muon g-2
• One meson radiative tau decays
• Consistent high-energy constraints in the anomalous QCD sector
• Decays of $J/\psi$ and ${\psi }^{\prime }$ into vector and pseudoscalar meson and the pseudoscalar glueball-$q\bar{q}$ mixing
• Radiative VPgamma transitions and eta-eta' mixing
• Phases and Amplitudes in Inclusive $\Psi$ and ${\Psi }^{\prime }$ Decays
• Phenomenological evidence for the energy dependence of the $\eta -{\eta }^{\prime }$ mixing angle
• Isospin symmetry breaking through pi^0 - eta -eta' mixing
• Eta-eta' masses and mixing: a large N_c reappraisal
• Radiative transitions in charmonium from $N_f=2$ twisted mass lattice QCD
• Radiative $\varphi$$-$meson decays and $\eta$-${\eta }^{\prime }$ mixing: a QCD sum rule analysis
• J/psi->VP decays and the quark and gluon content of the eta and eta'
• A perturbative approach to the eta_c-gamma transition form factor
• Pi pi scattering lengths at O(p^6) revisited
• Study of electromagnetic decay of $J/\psi$ and ${\psi }^{\prime }$ to vector and pseudoscalar
• VMD, the WZW Lagrangian and ChPT: The Third Mixing Angle
• Study of the electromagnetic transitions $J/\psi \to P{l}^{+}{l}^{-}$ and probe dark photon
• Study of η-η' mixing from radiative decay processes
• Observation of Electromagnetic Dalitz decays J/ψ\to P e^+e^-
• Radiative transition processes of light vector resonances in a chiral framework
• Understanding the radiative decays of vector charmonia to light pseudoscalar mesons
• $\eta$ and ${\eta }^{\prime }$ Physics at BES-III
• Meson-Photon Transition Form Factors in the Charmonium Energy Range
• Ultimate survival in anomalous psi(2S) decays
• Resonance effects in pion and kaon decay constants
• $\eta -{\eta }^{\prime }$ Mixing Angle from Vector Meson Radiative Decays

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