Instantons and Structure of Pentaquark

Details Instantons and Structure of Pentaquark Instantons and Structure of Pentaquark

2005-01-05

arxiv.org/abs/hep-ph/0501026v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures, Talk at XVII International Baldin Seminar on High Energy Physics Problems, Dubna, Russia, September 27 --

Scientific paper

We are discussing the influence of the complex structure of the QCD vacuum on the properties of the exotic multiquark states, specially the possibility for the existence of a deeply bound pentaquark. We show that the specific spin-flavor properties of the instanton induced interaction between the quarks leads to the existence of light tri- and di-quark clusters inside the pentaquark. This strong quark correlations might be behind the anomalous properties of the pentaquark.

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