dorsal/arxiv
View SchemaThe Unitary Clothing Transformation Method in Quantum Field Theory. Renormalization of Coupling Constant
| Authors | I. V. Yeletskikh |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0701071 |
| URL | https://arxiv.org/abs/nucl-th/0701071 |
Abstract
Applying the unitary clothing transformation method in the model of charged spinless nucleons and neutral mesons interacting via the three-linear Yukawa-type coupling, the expression for the charge shift in the third order in the coupling constant is derived. Being determined off the energy shell, the ex-pression can be reduced on the energy shell to the explicitly covariant form, providing the independence of the particle momenta. Comparison with the cor-responding result of the Dyson covariant perturbation theory is performed by es-tablishing the link between the old-fashioned perturbation theory and the cloth-ing approach.
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"abstract": "Applying the unitary clothing transformation method in the model of charged\nspinless nucleons and neutral mesons interacting via the three-linear\nYukawa-type coupling, the expression for the charge shift in the third order in\nthe coupling constant is derived. Being determined off the energy shell, the\nex-pression can be reduced on the energy shell to the explicitly covariant\nform, providing the independence of the particle momenta. Comparison with the\ncor-responding result of the Dyson covariant perturbation theory is performed\nby es-tablishing the link between the old-fashioned perturbation theory and the\ncloth-ing approach.",
"arxiv_id": "nucl-th/0701071",
"authors": [
"I. V. Yeletskikh"
],
"categories": [
"nucl-th"
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"title": "The Unitary Clothing Transformation Method in Quantum Field Theory. Renormalization of Coupling Constant",
"url": "https://arxiv.org/abs/nucl-th/0701071"
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