Search for supernarrow dibaryons production in pd→p + pX{sub}1 and pd→p + dX{sub}2 reactions

摘要

We study a production of supernarrow dibaryons, the decay of which into two nucleons is forbidden by the Pauli exclusion principle, in the reactions pd→p+pX{sub}1 and pd→p+dX{sub}2 at Linear Accelerator of INR (Moscow). Dibaryons with masses 1904±2, 1926±2 and 1942±2 MeV have been observed in missing mass M{sub}(pX{sub}1) spectra. In missing mass M{sub}(X{sub}1) spectra, the peaks at M{sub}(X{sub}1) = 966±2, 986±2, and 1003±2 MeV have been found. The analysis of the data obtained leads to the conclusion that the observed dibaryons are supernarrow dibaryons. The possible interpretation of "exotic baryon states" with small masses is discussed.