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Title: Box diagram in Yukawa theory

Abstract

We present a light-front calculation of the box diagram in Yukawa theory. The covariant box diagram is finite for the case of spin-1/2 constituents exchanging spin-0 particles. In light-front dynamics, however, individual time-ordered diagrams are divergent. We analyze the corresponding light-front singularities and show the equivalence between the light-front and covariant results by taming the singularities.

Authors:
;  [1];  [2]
  1. Department of Physics and Astrophysics, Vrije Universiteit, De Boelelaan 1081, NL-1081 HV Amsterdam (Netherlands)
  2. Department of Physics, North Carolina State University, Raleigh, North Carolina 27695-8202 (United States)
Publication Date:
OSTI Identifier:
21020189
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevD.75.065010; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOSONS; EXCHANGE INTERACTIONS; FERMIONS; FEYNMAN DIAGRAM; LIGHT CONE; QUANTUM FIELD THEORY; SINGULARITY; SPIN

Citation Formats

Bakker, Bernard L. G., Boomsma, Jorn K., and Ji, Chueng-Ryong. Box diagram in Yukawa theory. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.065010.
Bakker, Bernard L. G., Boomsma, Jorn K., & Ji, Chueng-Ryong. Box diagram in Yukawa theory. United States. doi:10.1103/PHYSREVD.75.065010.
Bakker, Bernard L. G., Boomsma, Jorn K., and Ji, Chueng-Ryong. Thu . "Box diagram in Yukawa theory". United States. doi:10.1103/PHYSREVD.75.065010.
@article{osti_21020189,
title = {Box diagram in Yukawa theory},
author = {Bakker, Bernard L. G. and Boomsma, Jorn K. and Ji, Chueng-Ryong},
abstractNote = {We present a light-front calculation of the box diagram in Yukawa theory. The covariant box diagram is finite for the case of spin-1/2 constituents exchanging spin-0 particles. In light-front dynamics, however, individual time-ordered diagrams are divergent. We analyze the corresponding light-front singularities and show the equivalence between the light-front and covariant results by taming the singularities.},
doi = {10.1103/PHYSREVD.75.065010},
journal = {Physical Review. D, Particles Fields},
number = 6,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}