Search for eta-mesic nuclei in photo-mesonic processes
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Preliminary results of an experiment performed at the Lebedev Physical Institute with the bremsstrahlung photon beams of the end-point energies 650 and 850 MeV are presented. Correlated pi+n pairs with the opening angle theta = 180 deg and the energies E_π= 300 MeV, E_n = 100 MeV from the process gamma + 12C -> N + eta(A-1) -> N + pi+ n + (A-2) were observed. They provide an evidence for an existence of the eta-11B and eta-11C eta-mesic nuclei.
6 pages, 5 figures. Talk given by G.A. Sokol at the 14th International Seminar on High Energy Physics Problems (Aug 17-22, 1998, Dubna). To appear in proceedings
6 pages, 5 figures. Talk given by G.A. Sokol at the 14th International Seminar on High Energy Physics Problems (Aug 17-22, 1998, Dubna). To appear in proceedings