  An analysis of experimental data, obtained at the Proton Linear Accelerator
of INR, is carried out with the aim of searching for supernarrow dibaryons in
the pd->p+pX_1 and pd->p+dX_2 reactions. Dibaryons with masses 1904\pm 2,
1926\pm 2, and 1942\pm 2 MeV have been observed in invariant mass M_{pX_1}
spectra. In missing mass M_{X_1} spectra, the peaks 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.
