Discovery of eta-mesic nuclei

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First experimental results from a photoreaction which confirm an existence of eta-mesic nuclei are discussed. The experiment was performed at the 1 GeV electron synchrotron of LPI. Two values of the end-point energy of the bremsstrahlung beam were used, 650 and 850 MeV (below and above eta-photoproduction threshold on the nucleon). Correlated pi+ n pairs flying from the 12C target were detected by two TOF scintillator spectrometers placed in opposite directions and transversely to the gamma beam. Measured energy spectra provide a strong evidence for a creation of eta-mesic nuclei as intermediate states of the reaction studied.
9 pages, 7 figures included. Talk of G.A.S. at the 10th Lomonosov Conference, August, Moscow. Conference style included

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Nuclear Experiment

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http://salesiana.dossiersoluciones.com/handle/123456789/81132

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-ex/0111020
 http://arxiv.org/abs/nucl-ex/0111020

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arXiv