Electroweak Form Factor in Sudakov and Threshold Regimes with Effective Field Theories
Abstract
We compute the massive gauge and scalar corrections to form factors in both the Sudakov and threshold regimes up to and including two-loop orders. The corrections are calculated for processes involving two external fermions and scalars in the spontaneously broken SU(N)-Higgs model, examining a range of composite operators. Our results are general, so we discuss how our form factors are mappable from our model to the Standard Model and beyond. The effective theory formalism deployed in our work extends previous studies based on infrared evolution equations, which either neglect scalar contributions or are restricted to the Sudakov regime.
Cite
@article{arxiv.2011.14933,
title = {Electroweak Form Factor in Sudakov and Threshold Regimes with Effective Field Theories},
author = {B. Assi and B. A. Kniehl},
journal= {arXiv preprint arXiv:2011.14933},
year = {2020}
}
Comments
80 pages, 11 figures. arXiv admin note: text overlap with arXiv:0712.0396, arXiv:hep-ph/0603133 by other authors