(Λ, p) Spectrum Analysis in p+A Interactions at 10 GeV/c

Abstract

Experimental data from the 2m propane bubble chamber have been analyzed for exotic baryon states search. A number of peculiarities were found in the effective mass spectra of: Λπ+(Σ*+(1382),PDG), Λp and Λpp subsystems. A few events detected on the photographs of the propane bubble chamber exposed to a 10 GeV/c proton beam, were interpreted as S=−2 H0 light(<M(ΛΛ)) and heavy H0,+. New event, detected on the photographs of the propane bubble chamber was interpreted as heavy H+(2488) dibaryon by two weak decay channels of K−pp or Σ+pπ−.