Unified study ofJ/ψ→PV,Pγ(*)and light hadron radiative processes

2014/11/30 by Yunhua Chen, Yun-Hua Chen, Zhi-Hui Guo +2 · 29 citations
Physics and Astronomy · #Electron #High-Energy Particle Collisions Research #Lagrangian #Lepton #Mathematical physics #Meson #Mixing (physics) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ph

paper · pdf · doi:10.1103/physrevd.91.014010

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 91(1) (American Physical Society) · 29 pages, 8 figures and 6 tables. References added. Accepted by Phys.Rev.D

arxiv created 2014/12/26 · openalex publication_date 2015/01/08 · arxiv updated 2015/01/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Within the framework of the effective Lagrangian approach, we perform a thorough analysis of the J/\ensuremathψ\ensuremath→P\ensuremathγ(\ensuremathγ^*), J/\ensuremathψ\ensuremath→VP, V\ensuremath→P\ensuremathγ(\ensuremathγ^*), P\ensuremath→V\ensuremathγ(\ensuremathγ^*), and P\ensuremath→\ensuremathγ\ensuremathγ(\ensuremathγ^*) processes, where V stands for light vector resonances, P stands for light pseudoscalar mesons, and \ensuremathγ^* subsequently decays into lepton pairs. The processes with light pseudoscalar mesons \ensuremathη and \ensuremathη^\ensuremath' 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/\ensuremathψ\ensuremath→\ensuremathη(\ensuremathη^\ensuremath')\ensuremathγ^(*) processes are predominantly dominated by the J/\ensuremathψ\ensuremath→\ensuremathη_c\ensuremathγ^*\ensuremath→\ensuremathη(\ensuremathη^\ensuremath')\ensuremathγ^(*) mechanism. Predictions for the J/\ensuremathψ\ensuremath→P\ensuremathμ⁺\ensuremathμ^\ensuremath- are presented. A detailed discussion on the interplay between electromagnetic and strong transitions in the J/\ensuremathψ\ensuremath→VP decays is given.

Citations

• Mixing of η-η′ mesons in decays into a vector and a pseudoscalar meson
• Meson resonances, largeNcand chiral symmetry
• Study ofη–η′mixing from radiative decay processes
• STUDY OF THE ELECTROMAGNETIC TRANSITIONS J/ψ → P l+l- AND PROBE DARK PHOTON
• Odd-intrinsic-parity processes within the resonance effective theory of QCD
• Chiral perturbation theory to one loop
• Ultimate survival in anomalous ψ(2S) decays
• Radiative phi-meson decays and η−η′ mixing: a QCD sum rule analysis
• Chiral effective lagrangian in the large-N limit: the nonet case
• Chiral perturbation theory: Expansions in the mass of the strange quark
• A planar diagram theory for strong interactions
• Study of the electromagnetic transition form-factors in η→μ+μ−γ and ω→μ+μ−π0 decays with NA60
• Study of electromagnetic decay of and to vector and pseudoscalar
• Big-Bang Nucleosynthesis