The observation of double strange stable dibaryons Available to Purchase

A few events, detected on the photographs of the JINR 2m propane bubble chamber exposed to a 10 GeV/c proton beam, were interpreted H dibaryons. A reliable identification of the above events needs a multivertex kinematic analysis which is in turn is feasible only using 4π-detectors and high measurement precisions of the sought objects. The 2 m propane bubble chamber is best suited for these purpose. These events are grouped into two following groups. 1. The first group is formed of three neutral, $S=−2$ stable dibaryons, the masses of which are below the ΛΛ threshold. 2. The second group is formed of two neutral and three positively charged $S=−2$ heavy stable dibaryons. The masses of all the five dibaryons coincide within the limits of errors are over the ΛΛ, $ⅪN,$ ΛΣ threshold.