Landau's asymptotic solution of the vertex function in QED

Journal Article · Fri Apr 15 00:00:00 EST 1983 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.27.1945· OSTI ID:6082403

Manoukian, E B

We consider finite massless QED with the electron mass totally dynamical of origin and the fine-structure constant as the (infinite order) zero of the Callan-Symanzik function. In spacelike regions, the electron propagator (in the generalized Landau gauge) and the photon propagator are then proportional to their free counterparts, and the integral equation for the vertex function GAMMA/sub sigma/ may be written solely as a function of GAMMA/sub sigma/ itself. Landau's approximation is used to obtain the asymptotics for GAMMA/sub sigma/(p,p-k;k) for p/sup 2/,k/sup 2/..-->..infinity, p/sup 2//k/sup 2/..-->..0 in spacelike regions.

• Research Organization: Department of National Defense, Royal Military College of Canada, Kingston, Ontario K7L2W3, Canada
• OSTI ID: 6082403
• Journal Information: Phys. Rev. D; (United States), Vol. 27:8
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM ELECTRODYNAMICS
VERTEX FUNCTIONS
ASYMPTOTIC SOLUTIONS
ELECTRONS
FINE STRUCTURE
INTEGRAL EQUATIONS
PHOTONS
PROPAGATOR
ELECTRODYNAMICS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FIELD THEORIES
FUNCTIONS
LEPTONS
MASSLESS PARTICLES
QUANTUM FIELD THEORY
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