Exotic strange multibaryon states searches with Λ- hyperon and K⁰_s- meson systems in p+A collisions at momentum 10 GeV/c

2007/10/23 by Aslanyan, P. Zh.
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)

paper · doi:10.48550/arxiv.0710.4322

Abstract

Review for exotic strange multibaryon states were obseved in the effective mass spectra of: 1)Λπ⁺, Λπ^-, Λp, Λp p, and ΛK⁰_S, K⁰_Sπ^± and K⁰_Sp subsystems.The invariant mass of Λπ⁺ and K⁰_Sπ^± spectra has observed well known Σ^*+(1385) and K^*±(892) resonances. The width of Σ^*-(1385) for p+A reaction is two time larger than that presented in PDG. The cross section of Ξ^-→ Λπ^- is 7-8 times larger than expected geometrical cross section in p+propane interaction. A few events detected on the photographs of the propane bubble chamber, were interpreted as S=-2 light and heavy H^0,+ dibaryons.

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