Search for a strangeness‐2 dibaryon Available to Purchase

The existing data on the strangeness ‐2 two‐baryon mass spectrum is reviewed and a new experiment is proposed to explore this spectrum from 100 MeV below the mass of the lightest known two‐baryon strangeness ‐2 system, ΛΛ, to 20 MeV above the ΛΛ mass. The proposed experiment is motivated by Jaffe’s 1977 prediction of a six‐quark object with strangeness −2 and J^π=0⁺ at a mass of 2150. This particle, called the ‘‘H’’, has been predicted by later bag models as well. Calculations indicate the proposed experiment will be a sensitive test of the dibaryon theories.