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arXiv · 0912.5159

The Observed Correlations for the Strange Multibaryon States in Systems with $Λ$-Hyperon from pa Collision at Momentum of 10 Gev/$c$

P. Zh. Aslanyan
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Abstract

he observed well-known resonances $Σ^0$ $Σ^{*+}$(1385) and $K^{*\pm}$(892) from PDG are good tests of this method. Exotic strange multibaryon states have been observed in the effective mass spectra of: $Λπ^{\pm}$,$Λγ$, $Λp$, $Λp p$ subsystems. The mean value of mass for $Σ^{*-}(1385)$ resonance is shifted till mass of 1370 MeV/$c^2$ and width is two times larger than the same value from PDG. Such kind of behavior for width and invariant mass of $Σ^{*-}(1385)$ resonance is interpreted as extensive contribution from stopped $Ξ^-\toΛπ^-$ and medium effect with invariant mass. The mean value of mass for $Σ^{*+}(1385)$ from secondary interactions is also shifted till mass of 1370 MeV/$c^2$. The width of $Σ^0$ is $\approx$ 2 times larger than the experimental error. There are enhancement production for all observed hyperons.

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P. Zh. Aslanyan. 2009-12-28. The Observed Correlations for the Strange Multibaryon States in Systems with $Λ$-Hyperon from pa Collision at Momentum of 10 Gev/$c$. https://doi.org/10.1134/s1063779609040042

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