Observation of decays of short-lived particles in an emulsion exposed to 400-GeV/c protons
Komer A.A., Orlova G.I., Salmanova N.A., Tret'yakov M.I., Chernyavskii M.M.
The nine events of short-lived particle decay observed in an emulsion bombarded with 400-GeV/c protons are interpreted as decays of charmed particles (mainly baryons). An estimate of the lifetime yielded a value 1.2x10" 14 sec. The cross section for the production of charmed particles was found to be —100 μο/nucleon.