Creation and decay of eta-mesic nuclei

Details Creation and decay of eta-mesic nuclei Creation and decay of eta-mesic nuclei

2000-06-19

arxiv.org/abs/nucl-ex/0006010v1

AIP Conf.Proc. 549 (2002) 411-416

Physics

Nuclear Physics

Nuclear Experiment

6 pages, 6 figures. Talk at CIPANP, May 2000, Quebec

Scientific paper

10.1063/1.1345285

First experimental results on photoproduction of eta-mesic nuclei are analyzed. In an experiment performed at the 1 GeV electron synchrotron of the Lebedev Physical Institute, correlated pi+n pairs arising from the reaction gamma + 12C -> N + eta(A-1) -> N + pi+ + n + (A-2) and flying transversely to the photon beam have been observed. When the photon energy exceeds the eta-meson production threshold, a distribution of the pi+n pairs over their total energy is found to have a peak in the subthreshold region of the internal-conversion process eta p -> pi+ n which signals about formation of eta-mesic nuclei.

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