  The reactions p+d-> p+pX and p+d-> p+dX at 305 MeV are studied with the aim
to search for supernarrow dibaryons, decay of which into two nucleons is
suppressed by the Pauli principle. The experiment was carried out at the Moscow
Meson Factory using a spectrometer TAMS, which detected the scattered proton in
coincidence with the second charged particle (the proton or deuteron) at
various angles. Narrow peaks at 1905 and 1924 MeV with widths less than the
experimental resolution (3 MeV) have been observed in missing- mass spectra of
the process pd->pX. An analysis of the angular dependence of the experimental
data shows that the resonance at $M$=1905 MeV most likely corresponds to the
production of the isovector supernarrow dibaryon.
