J/Ψ\to ϕππ(K \bar{K}) decays, chiral dynamcis and OZI violation
| dc.creator | Meißner, Ulf-G. | |
| dc.creator | Oller, J. A. | |
| dc.date | 2000-05-25 | |
| dc.date | 2000-09-14 | |
| dc.date.accessioned | 2026-07-07T10:52:04Z | |
| dc.date.available | 2026-07-07T10:52:04Z | |
| dc.description | We have studied the invariant mass distributions of the ππand K \bar{K} systems for invariant masses up to 1.2 GeV from the J/Ψ\to ϕππ(K\bar{K}) decays. The approach exploits the connection between these processes and the ππand K\bar{K} strange and non-strange scalar form factors by considering the ϕmeson as a spectator. The calculated scalar form factors are then matched with the ones from next-to-leading order chiral perturbation theory, including the calculation of the the K\bar{K} scalar form factors. Final state interactions in the J/Ψ\to ϕππ(K\bar{K}) processes are taken into account as rescattering effects in the system of the two pseudoscalar mesons. A very good agreement with the experimental data from DM2 and MARK-III is achieved. Furthermore, making use of SU(3) symmetry, the S-wave contribution to the π^+π^- event distribution in the J/Ψ\to ωπ^+π^- reaction is also given and the data up to energies of about 0.7 GeV are reproduced. These decays of the J/Ψto a vector and a pair of pseudoscalars turn out to be very sensitive to OZI violating physics which we parametrize in terms of a direct OZI violation parameter and the chiral perturbation theory low energy constants L_4^r and L_6^r. These constants all come out very different from zero, lending further credit to the statement that the OZI rule is not operative in the scalar 0^{++} channel. | |
| dc.description | revtex, 21 pages, 10 figures, extended discussion of the model in section 2 and some minor corrections, version accepted for publication in Nucl. Phys. A | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0005253 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0005253 | |
| dc.identifier | Nucl.Phys.A679:671-697,2001 | |
| dc.identifier | doi:10.1016/S0375-9474(00)00367-5 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/185032 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | J/Ψ\to ϕππ(K \bar{K}) decays, chiral dynamcis and OZI violation | |
| dc.type | text |