Strange multibaryon states with Λ hyperon systems in pA collision 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 H 0 light(< M (ΛΛ) ) and heavy H 0,+ . 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 − .