Abstract
The ρ{variant}0ρ{variant}0 production in the recent Mark II experiment of J/ψ radiative decay is interpreted as due to two isoscalar 2++ four-quark (q2q2) states which together with the isotensor 2++ four-quark state are responsible for the major part of the ρ{variant}0ρ{variant}0 enhancement observed in γγ→ρ{variant}0ρ{variant}0. It is believed to be different from the θ (1640) meson, a glueball candidate, which decays to ηη and kk. In order to distinguish between them, we propose to measure the angular correlation between γ and ρ{variant}0 in e+e-→J/ψ→γρ{variant}0ρ{variant}0 and the branching ratio of the decay mode J/ψ→γωω. The 2++ φφ resonance (at 2.16 GeV) observed in hadronic reactions is predicted to be produced in J/ψ radiative decay also with BR(J/ψ→γφφ)/BR(J/ψ→ γρ{variant}0ρ{variant}0)∼0.18.
Original language | English |
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Pages (from-to) | 128-132 |
Number of pages | 5 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 134 |
Issue number | 1-2 |
DOIs | |
State | Published - Jan 5 1984 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics