Spinor Electrodynamics Research Articles

Dynamics at high momentum and the vertex function of spinor electrodynamics: R. Jackiv, Organisation Européenne Pour La Recherche Nucléaire. Genève, Switzerland

Dynamics at high momentum and the vertex function of spinor electrodynamics: R. Jackiv, Organisation Européenne Pour La Recherche Nucléaire. Genève, Switzerland

Remarks concerning the possibility of finite charge renormalization in spinor electrodynamics

The analysis of spinor electrodynamics, performed by Johnson, Willey and Baker, is examined by use of the renormalization group. It is concluded that the vanishing of the coefficient of the term proportional to log ( m M ) in Z 3 −1 is necessary, but not sufficient, for Z 3 −1 to be finite. The mass assumption of the renormalization group is discussed, and explicitly verified through sixth order.

Asymptotic limit of vertex functions in perturbation theory

The asymptotic behaviour of the Feynman diagrams for the vertex function with two external lines on the mass shell is studied. The leading contributions of each order are explicitly summed in the case of spinor electrodynamics with heavy photons. The connection with the off-shell case is also discussed.