Hara's theorem, quark model, and gamma_5-dependent renormalization constants

Details Hara's theorem, quark model, and gamma_5-dependent renormalization constants Hara's theorem, quark model, and gamma_5-dependent renormalization constants

1997-11-15

arxiv.org/abs/hep-ph/9711341v1

Eur.Phys.J.C5:701-703,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX

Scientific paper

10.1007/s100520050312

We discuss the applicability of gamma_5-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 gamma_5-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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