Electroweak Contributions to Squark Pair Production at the LHC
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
In this paper we compute electroweak contributions to the production of squark pairs at hadron colliders. These include the exchange of electroweak gauge bosons in the s-channel as well as electroweak gaugino exchange in the t- and/or u-channel. In many cases these can interfere with the dominant QCD contributions. As a result, we find sizable contributions to the production of two SU(2) doublet squarks. At the LHC, they amount to 10 to 20% for typical mSUGRA (or CMSSM) scenarios, but in more general scenarios they can vary between -40 and +55%, depending on size and sign of the SU(2) gaugino mass. The electroweak contribution to the total squark pair production rate at the LHC is about 3.5 times smaller.
Keywords
Cite
@article{arxiv.0709.2544,
title = {Electroweak Contributions to Squark Pair Production at the LHC},
author = {Sascha Bornhauser and Manuel Drees and Herbi K. Dreiner and Jong Soo Kim},
journal= {arXiv preprint arXiv:0709.2544},
year = {2008}
}
Comments
28 pages, 9 figures