FIZIKA B 17 (2008) 2, 207 - 216

 

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
E-mail address: paslanian@jinr.ru

Received 23 October 2007;   Accepted 20 February 2008
Online 20 June 2008

Exotic strange multibaryon states have been observed in the effective mass spectra of L p+, L p-, L p and L p p, and of L K0S, K0Sp and K0Sp subsystems. The invariant mass of L p+ and K0Sp spectra has shown the well known S*+(1385) and K*(892) resonances. The width of S*-(1385) from the p+A reaction is two times larger than that presented in PDG. The cross section of X- L p- 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.

PACS: 14.20.Jn, 25.80.Nv, 25.80.Pw, 14.20.Gk, 14.40.Ev, 14.20.Pt
UDC 539.126

Keywords: hyperon, meson, baryon, resonance, strangeness, confinement, bubble chamber

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