Strange tribaryons

Details Strange tribaryons Strange tribaryons

2006-01-30

arxiv.org/abs/hep-ph/0601252v1

Phys.Rev.C73:034004,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 10 figures, 4 tables. Accepted for publication in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.73.034004

We use two-body potentials derived from a constituent quark cluster model to analyze the bound-state problem of the $\Sigma NN$ system. The observables of the two-body subsystems, $NN$ and $\Sigma N$, are well reproduced. We do not find $\Sigma NN$ bound states, but there are two attractive channels with a resonance close above the three-body threshold. These channels are the $(I,J)=(1,1/2)$ and $(0,1/2)$, their quantum numbers, widths and energy ordering consistent with the recently measured strange tribaryons from the $^{4}{\rm He}(K_{{\rm stopped}}^{-},N)$ reactions in the KEK PS E471 experiment.

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