Gluonic contribution to the nucleon self-energy in an effective theory

Details Gluonic contribution to the nucleon self-energy in an effective theory Gluonic contribution to the nucleon self-energy in an effective theory

2005-01-19

arxiv.org/abs/hep-ph/0501175v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 Pages, 2 figures

Scientific paper

Gluonic contributions to the self-energy of a nucleon have been investigated in an effective theory. The couplings of the topological charge density to nucleons give rise to OZI violating nucleon interactions. The one-loop self-energy of a nucleon arising due to these interactions have been calculated using a heavy baryon chiral perturbation theory. The divergences have been regularized using form factors. The nontrivial structure of the QCD vacuum has also been taken into account.

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