Multiquark bound and resonant states

Bound multiquark states with Y hypercharge within Y=2-5 range are investigated. Investigations were conducted in n12C- and π-12C reactions at 7 and 4 GeV/c, respectively. Spectra of invariant masses for production of Λmp bound states where m=2-4 and of K0 up, where n=1-5 are considered. Q6 multiquark resonance states with Y ≤ 1 hypercharge, observation of which is possible in Λp(I=1/2, Y=1, B=2, S=-1) elastic scattering channel as well as in Λpπ(I=3/2; 1/2, Y=1, B=2, S=-1), ΛΛ(I=0, Y=0, B=2, S=2), ΛΛp(I=1/2, Y=1, B=3, S=-2) systems and in H(I=0, Y=0, J=0+) → Σ-p dibaryon weak decay. Mass spectra of ΛΛ-, ΛΛp systems are shown. Data for masses, widths, significances and cross sections of Λp production (on 12C) and Λπ+π+ states in comparison with predicted data of bag model are presented in the tables. 21 refs.; 4 figs.; 2 tabs