High Energy Physics - Phenomenology
[Submitted on 19 Jan 2005]
Title:Gluonic contribution to the nucleon self-energy in an effective theory
View PDFAbstract: 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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