The pion_0 to gamma gamma decay and the chiral anomaly in the quark-composites approach to QCD

Details The pion_0 to gamma gamma decay and the chiral anomaly in the quark-composites approach to QCD The pion_0 to gamma gamma decay and the chiral anomaly in the quark-composites approach to QCD

2000-04-21

arxiv.org/abs/hep-lat/0004019v1

Physics

High Energy Physics

High Energy Physics - Lattice

17 LaTeX2e pages

Scientific paper

We evaluate the pion_0 into two gammas decay amplitude by an effective action
derived from QCD in the quark composites approach, getting the standard value.
We also verify that our effective action correctly reproduces the chiral
anomaly.

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