Perturbative approach to U_A(1) breaking

Details Perturbative approach to U_A(1) breaking Perturbative approach to U_A(1) breaking

2005-07-26

arxiv.org/abs/hep-ph/0507299v1

Afr.J.Math.Phys.3:65-72,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 9 pages, Prepared for the Proceedings of The International Conference on High Energy and Mathematical Physics, Marrakec

Scientific paper

The six-quark instanton induced 't Hooft interaction is considered in
combination with the Nambu-Jona-Lasinio (NJL) type U_L(3)X U_R(3) chiral
symmetric Lagrangian. We discuss the bosonization of this multi-quark
interaction, taking the U_A(1) breaking as a perturbation. We discuss its
relation with the usual approach.

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