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HK: Physik der Hadronen und Kerne
HK 46: Theory VII
HK 46.2: Group Report
Thursday, March 11, 2004, 17:00–17:30, D
Axial Anomalies in Strong Interactions — •B. Borasoy, N. Beisert, E. Lipartia, and R. Nißler — Institute for Theoretical Physics (T39), TU München, Germany
Phenomenological implications of axial anomalies in strong interactions are discussed within the framework of chiral effective field theory. Processes dominated by the axial anomalies are, e.g., the two-photon decays of π0, η, η′ or η, η′ → π+ π− γ. Different approaches in the anomalous sector of the chiral theory are compared. Financial support of the Deutsche Forschungsgemeinschaft is gratefully acknowledged.