Strange Tribaryons as Nona-quark States

Details Strange Tribaryons as Nona-quark States Strange Tribaryons as Nona-quark States

2004-12-02

arxiv.org/abs/hep-ph/0412025v3

Prog.Theor.Phys. 114 (2005) 317-327

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 3 figures

Scientific paper

10.1143/PTP.114.317

Strange tribaryons as nona-quark (9 quark) states is studied to describe the S=-1 resonance S^0(3115) recently discovered in the reaction K- + ^4 He -> S^0 + p. We have identified S^0(3115) as a member of the flavor 27-plet, in particular, (F_{flavor},I_{isospin},J_{spin})=(27,1,1/2) or (27,1,3/2). The color-magnetic interaction between quarks favors small multiplets in flavor and spin, which leads to a natural explanation that I=1 is the lowest state among the S=-1 tribaryons with J=1/2. Classification of the S^+ -state recently reported as well as possible locations of other light strange tribaryons such as (10*,0,3/2) with S=-1, (8,1/2,1/2) with S=-2 and (1,0,3/2) with S=-3 are also discussed.

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