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Chiral invariant renormalization of the pion--nucleon interaction

G. Ecker

hep-pharXiv:hep-ph/9402337

Abstract

The leading divergences of the generating functional for Green functions of quark currents between one--nucleon states are calculated with heat kernel techniques. The results allow for a chiral invariant renormalization of all two--nucleon Green functions of the pion--nucleon system to O(p3) in the low--energy expansion.

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