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

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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.
17 LaTeX2e pages

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High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/38477

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-lat/0004019
 http://arxiv.org/abs/hep-lat/0004019

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arXiv