Time Ordering, Energy Ordering, and Factorization
High Energy Physics - Phenomenology
2015-06-25 v1 Mathematical Physics
math.MP
Abstract
Relations between integrals of time-ordered product of operators, and their representation in terms of energy-ordered products are studied. Both can be decomposed into irreducible factors and these relations are discussed as well. The energy-ordered representation was invented to separate various infrared contributions in gauge theories. It is shown that the irreducible time-ordered expressions can be used to accomplish the same purpose. Besides, it has the added advantage of being factorizable.
Keywords
Cite
@article{arxiv.hep-ph/9907490,
title = {Time Ordering, Energy Ordering, and Factorization},
author = {C. S. Lam},
journal= {arXiv preprint arXiv:hep-ph/9907490},
year = {2015}
}
Comments
16 pages in revtex