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

B. Loiseau·S. Wycech
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Abstract

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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B. Loiseau, S. Wycech. 2004-11-16. Antiproton-proton resonant like channels in J/Psi decays into photon, proton and antiproton. https://doi.org/10.1142/s0217751x05023803

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