World-line Green functions with momentum and source conservations
High Energy Physics - Theory
2015-06-26 v1
Abstract
Based on the generating functional method with an external source function, a useful constraint on the source function is proposed for analyzing the one- and two-loop world-line Green functions. The constraint plays the same role as the momentum conservation law of a certain nontrivial form, and transforms ambiguous Green functions into the uniquely defined Green functions. We also argue reparametrizations of the Green functions defined on differently parameterized world-line diagrams.
Keywords
Cite
@article{arxiv.hep-th/9906068,
title = {World-line Green functions with momentum and source conservations},
author = {Haru-Tada Sato},
journal= {arXiv preprint arXiv:hep-th/9906068},
year = {2015}
}
Comments
20(+1) pages, one pictex figure