Two-photon processes in two-nucleon systems as a tool of searching for exotic six-quark resonances
S. B. Gerasimov
Abstract
The reaction pp pp2γ, proposed earlier to probe for the NN--decoupled dibaryon resonances, has been studied by the DIB2γ Collaboration (JINR) and their preliminary data seem to give evidence for the resonance effect at about 1920 MeV. We discuss some other two-photon processes: the double radiative capture reaction in pionic deuterium, photoabsorption sum rules and the nuclear Compton scattering, which we consider to be especially feasible for further test and invesigation of possible low-lying, exotic six-quark states.
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