ROTATION AVERAGE IN LIGHT-CONE TIME-ORDERED PERTURBATION-THEORY - ART. NO. 105020

Authors
JI CR KIM GH MIN DP
Citation
Cr. Ji et al., ROTATION AVERAGE IN LIGHT-CONE TIME-ORDERED PERTURBATION-THEORY - ART. NO. 105020, Physical review. D. Particles and fields, 5810(10), 1998, pp. 5020
Citations number
14
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
5810
Issue
10
Year of publication
1998
Database
ISI
SICI code
0556-2821(1998)5810:10<5020:RAILTP>2.0.ZU;2-N
Abstract
We present a rotation average of the two-body scattering amplitude in light cone time- (tau-)ordered perturbation theory. Using a rotation a verage procedure, we show that the contribution of an individual time- ordered diagram can be quantified in a Lorentz invariant way. The numb er of time-ordered diagrams can also be reduced by half, if the masses of the two bodies are the same. In the numerical example of phi(3) th eory, we find that the higher Fock-state contribution is quite small i n light cone quantization. [S0556-2821(98)11420-0].