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Phenomenological Schwinger-Dyson approach to eta-eta' mass matrix

Dalibor Kekez·Dubravko Klabucar
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Abstract

It is reviewed pedagogically how a very successful description of the eta-eta' mass matrix can be achieved in the consistently coupled Schwinger-Dyson and Bethe-Salpeter approach in spite of the limitations of the ladder approximation. This description is in agreement with both phenomenology and lattice results.

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Dalibor Kekez, Dubravko Klabucar. 2002-12-19. Phenomenological Schwinger-Dyson approach to eta-eta' mass matrix. https://arxiv.org/abs/hep-ph/0212286

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