The Unitary Clothing Transformation Method in Quantum Field Theory. Renormalization of Coupling Constant
Nuclear Theory
2007-05-23 v1
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.
Keywords
Cite
@article{arxiv.nucl-th/0701071,
title = {The Unitary Clothing Transformation Method in Quantum Field Theory. Renormalization of Coupling Constant},
author = {I. V. Yeletskikh},
journal= {arXiv preprint arXiv:nucl-th/0701071},
year = {2007}
}
Comments
59 pages, 2 figures, master thesis