QCD vacuum topological susceptibility in a non-local chiral quark model

Details QCD vacuum topological susceptibility in a non-local chiral quark model QCD vacuum topological susceptibility in a non-local chiral quark model

2004-01-23

arxiv.org/abs/hep-ph/0401174v1

Phys.Part.Nucl.Lett. 1 (2004) 240-243

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk at SPIN-03 Workshop, Dubna, September 16-20, 2003, to appear in Proceedings; 6 pages, 1 figure

Scientific paper

The topological susceptibility of QCD vacuum is studied in the framework of a
covariant chiral quark model with non-local quark-quark interaction. The
relation of the first moment of topological susceptibility \chi'(0) and the
'spin crisis' problem is briefly discussed. It is shown, in particular, that
one always gets the inequality \chi'(0)>\chi'_{OZI}.

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