Published January 31, 1977 | Version v1
Journal article Metadata-only

The role of eikonal approximation in the infrared domain

Creators

  • 1. Saha Inst. of Nuclear Physics, Calcutta (India)
  • 2. Bern Univ. (Switzerland). Inst. fuer Theoretische Physik

Description

It is shown that the infrared limit of amplitudes for ladder diagrams in spinor electrodynamics is given by eikonal approximation correctly upto terms of relative O(/t/sup(1/2)/ssup(1/2)) only if one also makes the 'small-angle assumption'. Leading corrections to eikonal amplitude contain s-channel poles which do not have Coulomb analogue. For fixed angle scattering the leading infrared contribution of ladder diagrams is obtained. (Auth.)

Additional details

Identifiers

DOI
10.1016/0370-2693(77)90870-x;

Publishing Information

Journal Title
Physics Letters B
Journal Volume
66
Journal Issue
3
Series
Phys. Lett., B.
Journal Page Range
239-242
ISSN
0370-2693

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
8316201
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
EIKONAL APPROXIMATION; INFRARED DIVERGENCES; LADDER APPROXIMATION; QUANTUM ELECTRODYNAMICS; S CHANNEL; SCATTERING AMPLITUDES
Descriptors DEC
AMPLITUDES; ELECTRODYNAMICS; FIELD THEORIES; QUANTUM FIELD THEORY

Optional Information

Notes
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