One loop scalar functions in the heavy quark effective theory
High Energy Physics - Phenomenology
2009-01-07 v2
Abstract
We find general solutions for the dimensionally regularised scalar one loop three-point and four-point functions with one heavy quark propagator. The scalar one-point function vanishes, while the expression for the two-point function has been found before. For the latter we give a detailed derivation. We also discuss some special cases and compile useful formulae.
Keywords
Cite
@article{arxiv.hep-ph/0202135,
title = {One loop scalar functions in the heavy quark effective theory},
author = {J. Zupan},
journal= {arXiv preprint arXiv:hep-ph/0202135},
year = {2009}
}
Comments
18 pages, typos corrected, final results written out in more explicit form, further checks of results added