Original scientific paper
Exotic strange multibaryon state searches with L-hyperon and K0s-meson systems in p+A collisions at momentum 10 GeV/c
P. Zh. Aslanyan
; Joint Institute for Nuclear Research, Dubna, Russia and Yerevan State of University
Abstract
Exotic strange multibaryon states have been observed in the effective mass spectra of Λπ +, Λπ −, Λp and Λpp, and of ΛK0 S , K0 Sπ ± and K0 S p subsystems. The invariant mass of Λπ + and K0 Sπ ± spectra has shown the well known Σ∗+(1385) and K∗±(892) resonances. The width of Σ∗−(1385) from the p+A reaction is two times larger than that presented in PDG. The cross section of Ξ− → Λπ − is more than 4 times larger than expected on the basis of the geometrical cross section in p + propane interaction. A few events detected in the photographs of the propane bubble chamber were interpreted as S = −2 light and heavy H0,+ dibaryons.
Keywords
hyperon; meson; baryon; resonance; strangeness; confinement; bubble chamber
Hrčak ID:
304886
URI
Publication date:
4.5.2008.
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