Evidence for supernarrow dibaryons observed in pd interactions
Abstract
An analysis of new experimental data, obtained at Linear Accelerator of INR, is carried out with the aim of searching for supernarrow dibaryons in the reactions pd->p+X and pd->p+pX_1. Dibaryons with masses 1904\pm 2, 1926\pm 2, and 1942\pm 2 MeV have been observed in missing mass M_X spectra. In missing mass M_{X_1} spectra, the resonancelike states X_1=\gamma+n at M_{X_1}=966\pm 2, 986\pm 2, and 1003\pm 2 MeV have been found. The analysis of the data obtained leads to the conclusion that the observed dibaryons are supernarrow dibaryons, the decay of which into two nucleons is forbidden by the Pauli exclusion principle. A possible interpretation of exited nucleon states with small masses is suggested.Keywords
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