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RESEARCH PRODUCT
Role of the f 1 (1285) state in theJ/ψ→ϕK¯K⁎and J / ψ → ϕf 1 (1285) decays
Ju-jun XieJu-jun XieEulogio OsetEulogio Osetsubject
PhysicsNuclear and High Energy PhysicsUnitarityMeson010308 nuclear & particles physicsState (functional analysis)16. Peace & justice01 natural sciencesOmegaResonance (particle physics)0103 physical sciencesMass spectrumOrder (group theory)Invariant massAtomic physics010306 general physicsMathematical physicsdescription
Abstract We study the role of the f 1 ( 1285 ) resonance in the decays of J / ψ → ϕ K ¯ K ⁎ and J / ψ → ϕ f 1 ( 1285 ) . The theoretical approach is based on the results of chiral unitary theory where the f 1 ( 1285 ) resonance is dynamically generated from the K ⁎ K ¯ – c.c. interaction. In order to further test the dynamical nature of the f 1 ( 1285 ) state, we investigate the J / ψ → ϕ K ¯ K ⁎ decay close to the K ¯ K ⁎ threshold and make predictions for the ratio of the invariant mass distributions of the J / ψ → ϕ K ¯ K ⁎ decay and the J / ψ → ϕ f 1 ( 1285 ) partial decay width with all the parameters of the mechanism fixed in previous studies. The results can be tested in future experiments and therefore offer new clues on the nature of the f 1 ( 1285 ) state.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-02-01 | Physics Letters B |