Chiral anomaly transition form factor of γ → 3π in nonlocal quark model
1 Faculty of Physics, Tomsk State University, Lenina Ave. 36, 634050 Tomsk, Russia
2 Matrosov Institute for System Dynamics and Control Theory SB RAS, Lermontov str. 134, 664033 Irkutsk, Russia
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Published online: 3 April 2019
Chiral anomaly of gamma transition into three pions are studied in a framework of nonlocal chiral quark model. In the local limit the result is in agreement with chiral perturbative theory and reproducesWess-Zumino-Witten anomaly. Transition form factor of gamma into three pions in nonlocal quark model has a correction which vanishes in local limit.
© The Authors, published by EDP Sciences, 2019
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