How the "H-particle" unravels the quark dynamics

Details How the "H-particle" unravels the quark dynamics How the "H-particle" unravels the quark dynamics

1997-07-16

arxiv.org/abs/hep-ph/9707356v2

Phys.Rev. D57 (1998) 4393-4396

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages. Section, devoted to the numerical estimate of the "H-particle" channel with the Goldstone boson exchange model, is ex

Scientific paper

10.1103/PhysRevD.57.4393

It is shown that the short-range part of the Goldstone boson exchange interaction between the constituent quarks which explains baryon spectroscopy and the short-range repulsion in the NN system induces a strong short-range repulsion in the flavour-singlet state of the $\Lambda\Lambda$ system with $J^P=0^+$. It then suggests that a deeply bound H-particle should not exist. We also compare our approach with other models employing different hyperfine interactions between quarks in the nonperturbative regime of QCD.

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