Study of supernarrow dibaryon production in process pd-->pX

Details Study of supernarrow dibaryon production in process pd-->pX Study of supernarrow dibaryon production in process pd-->pX

1999-02-02

arxiv.org/abs/nucl-ex/9902002v2

Phys.Atom.Nucl.62:2021-2023,1999; Yad.Fiz.62:2191-2193,1999

Physics

Nuclear Physics

Nuclear Experiment

6 pages, 2 figures. Talk presented at the Conference of RAS Nuclear Physics Department, Moscow, ITEP, November 16-20, 1998. Mi

Scientific paper

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.

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