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Hara's theorem, quark model, and gamma5-dependent renormalization constants

P. Zenczykowski

hep-pharXiv:hep-ph/9711341

Abstract

We discuss the applicability of gamma5-dependent field renormalization as a means of renormalizing away the apparent violation of Hara's theorem observed in the quark model. It is pointed out that a result totally analogous to the violation of Hara's theorem is predicted by the quark model also for neutral baryons. For neutral baryons, however, such a result cannot be renormalized away. This proves that gamma5-dependent renormalization does not provide a proper way for a hadron-level understanding of the violation of Hara's theorem observed in the quark model.

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