Hints for the existence of hexaquark states in the baryon-antibaryon sector

Details Hints for the existence of hexaquark states in the baryon-antibaryon sector Hints for the existence of hexaquark states in the baryon-antibaryon sector

2009-12-22

arxiv.org/abs/0912.4299v1

Phys.Rev.D81:074018,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages

Scientific paper

10.1103/PhysRevD.81.074018

The discovery of some baryon-antibaryon resonances has led us to consider 3q~3\bar{q} systems as possible candidates. We predict their spectrum in the framework of a constituent model, where the chromo-magnetic interaction plays the main role. The relevant parameters are fixed by the present knowledge on tetraquarks. The emerging scenario complies well with experiment. Besides the description of the baryon-antibaryon resonances, we find evidence for new tetraquark states, namely the a0(Y) in the hidden strangeness sector and, in the cs\bar{c}\bar{s} sector, the Y(4140) and the X(4350). A detailed account of the spectra and the decay channels is provided for future comparisons with data.

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