Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-10-10
Physics
High Energy Physics
High Energy Physics - Phenomenology
Submitted for the SUSY07 proceedings, 4 pages, LaTeX, 3 eps figures
Scientific 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.
Bornhauser Sascha
Drees Manuel
Dreiner Herbi K.
Kim Jong Soo
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