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QCD corrections to single slepton production at hadron colliders

Yu-Qi Chen·Tao Han·Zong-Guo Si
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Abstract

We evaluate the cross section for single slepton production at hadron colliders in supersymmetric theories with R-parity violating interactions to the next-to-leading order in QCD. We obtain fully differential cross section by using the phase space slicing method. We also perform soft-gluon resummation to all order in $α_s$ of leading logarithm to obtain a complete transverse momentum spectrum of the slepton. We find that the full transverse momentum spectrum is peaked at a few GeV, consistent with the early results for Drell-Yan production of lepton pairs. We also consider the contribution from gluon fusion via quark-triangle loop diagrams dominated by the $b$-quark loop. The cross section of this process is significantly smaller than that of the tree-level process induced by the initial $b\bar{b}$ annihilation.

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Yu-Qi Chen, Tao Han, Zong-Guo Si. 2007-03-20. QCD corrections to single slepton production at hadron colliders. https://doi.org/10.1088/1126-6708%2F2007%2F05%2F068

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