The axial anomaly and the conversion of gluons into photons

1996/05/06 by M. M. Musakhanov, Musakhanov, M. M., F. C. Khanna +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9605232

gzip, tar, latex, 11 pages, 2 eps figures

arxiv created 1996/05/06 · arxiv updated 2009/11/30

Abstract

The axial anomaly in the divergence of the singlet axial current in QCD + QED leads to low-energy theorems for the matrix element of this operator equation over vacuum and two--photon states and for the matrix element over vacuum and two--gluon states. The solution of these theorems is related only to the nonperturbative phenomena. These matrix elements are calculated in instanton vacuum generated N-JL type quark model for arbitrary N_f . It is shown that this model does satisfy the low-energy theorems.

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