Antiproton-proton resonant like channels in J/Psi decays into photon, proton and antiproton

Details Antiproton-proton resonant like channels in J/Psi decays into photon, proton and antiproton Antiproton-proton resonant like channels in J/Psi decays into photon, proton and antiproton

2004-11-16

arxiv.org/abs/hep-ph/0411218v1

Int.J.Mod.Phys. A20 (2005) 1990-1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk at the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2004), Beijin

Scientific paper

10.1142/S0217751X05023803

The BES collaboration has recently observed a strong enhancement close to the proton-antiproton threshold in the J/Psi decays into photon, proton and antiproton. Such a structure can be explained by a traditional nucleon-antinucleon model. The near threshold 1S0 bound state and/or the well-established 3P0 resonant state found in this nucleon-antinucleon interaction can adequately describe the BES data.

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