Asymptotic behavior of the fermion and gluon exchange amplitudes in massive quantum electrodynamics in the Regge limit

Journal Article · Wed Jun 15 00:00:00 EDT 1983 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.27.2997· OSTI ID:5827234

Sen, A

We study the e/sup +/e/sup -/..--> gamma gamma.. amplitude in massive quantum electrodynamics in the large-s and fixed-t limit. We compute the amplitude in the leading-logarithm and the next-to-the-leading-logarithm approximations, to all orders in perturbation theory, and also find the general form of the full amplitude up to any non-leading-logarithm approximation. We do not use any transverse-momentum cutoff for our calculation. We find that, up to the next-to-the-leading-logarithm approximation, the contribution to the positive-signature amplitude is given by a single Regge pole. We find the contribution to the Regge trajectory up to two-loop order. The contribution to the negative-signature channel is consistent with the exchange of a gluon and a Reggeized fermion, interacting with each other through a four-point Reggeon vertex. The technique we have used to calculate the fermion exchange amplitude may also be used to calculate the vector-particle exchange amplitude in massive quantum electrodynamics. We have calculated the gluon exchange amplitude in massive QED in the positive- and the negative-signature channels in the leading-logarithm approximation.

• Research Organization: Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510
• OSTI ID: 5827234
• Journal Information: Phys. Rev. D; (United States), Vol. 27:12
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
QUANTUM ELECTRODYNAMICS
EXCHANGE INTERACTIONS
ANNIHILATION
COUPLING CONSTANTS
ELECTRON-POSITRON INTERACTIONS
FERMIONS
GLUONS
PERTURBATION THEORY
PHOTONS
REGGE POLES
SCATTERING AMPLITUDES
SPINORS
AMPLITUDES
BASIC INTERACTIONS
ELECTRODYNAMICS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
MASSLESS PARTICLES
PARTICLE INTERACTIONS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
645400* - High Energy Physics- Field Theory