The Observation of Exotic Resonances for Λγ,Λπ^±,Λπ⁺π^-, Λp, Λpp and p γ Spectra in p + a Collision at 10 Gev/c

2008/11/08 by Aslanyan P. Zh, Zh, Aslanyan P.
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · doi:10.48550/arxiv.0811.1273

openalex publication_date 2008/11/08 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

Strange multi-baryonic clusters are an exiting possibility to explore the properties of cold dense baryonic matter. Recent results on searches for exotic narrow resonances with Λ hyperon subsystems are reviewed. The observation of Σ⁰, Σ^*+(1385) and K^*±(892) well known resonances from PDG are a good tests of this method. The mean value of mass for Σ^*-(1385) resonance is shifted till mass of 1370 MeV/c² and width is two times larger than same value from PDG. Such of behavior for width and mass of Σ^*-(1385) resonance interpreted as extensive contribution from stopping Ξ^-→Λπ^- and medium effect with mass of Σ^*-(1385) resonance.In (Λπ⁺ π^-) spectrum there are observed enhancement signals from Λ^*(1600), Λ^*(1750) and Λ^*(1850) resonances. A number of significant signals were found in the effective mass spectra of: 1)Λγ,p γ Λπ^±,Λππ, Λp and Λp p subsystems.

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