Near-threshold enhancement inJ/ψ→γXwithX→ωϕ

Abstract

We investigate the possibility of producing the enhancement observed in J/ψ → γX with X → ωφ at BES by intermediate meson rescatterings through f0(1710) → P P → ωφ, f0(1710) → V V → ωφ, and f0(1710) → SS → ωφ. We find that intermediate meson rescatterings can produce some enhancement near the ωφ threshold. Implications about the property of this enhancement are discussed.

Hadronic and radiative three-body decays ofJ/ψinvolving the scalarsf0(1370),

“…An analysis of the role of the scalar mesons f 0 (1370) and f 0 (1710) in J/ψ radiative decays has been performed in Ref. [20,21].…”

Hadronic loop contributions to J/ψ and ψ′ radiative decays into γLi1, Zhao2 2008Physics Letters BSelf Cite430161View full textAdd to dashboardCite

“…In particular in the energy region of charmonium masses, with more and more data from Belle, BaBar, CLEO-c and BES, it is widely studied that intermediate meson loop may account for apparent OZI-rule violations [11,12,13,14,15,16] via quark-hadron duality arguement [17,18,19].…”

“…In the recent years, the intermediate meson loop is investigated in a lot of meson decay channels [8,9,10,11,12,13,14,15,16] as one of the important non-perturbative transition mechanisms, or known as final state interactiions (FSI). In particular in the energy region of charmonium masses, with more and more data from Belle, BaBar, CLEO-c and BES, it is widely studied that intermediate meson loop may account for apparent OZI-rule violations [11,12,13,14,15,16] via quark-hadron duality arguement [17,18,19].…”

Further understanding of the non-DD¯decays ofψ(3770)

“…With more and more data from Belle, BaBar, CLEO and BES-III, it is broadly recognized that the intermediate hadron loops can be closely related to a lot of non-perturbative phenomena observed in experiment, e.g. apparent OZI-rule violations [27,[29][30][31][32][33][34][35][36][37][38][39][40][41][42], helicity selection rule violations [29][30][31], and isospin symmetry breakings in charmonium decays [43,44]. In this work, we present a more detailed analysis of the ψ(3770) non-DD decays into a pair of vector and pseudoscalar mesons.…”