Searching SUSY Leptonic Partner at the CERN LHC
Jiwei Ke, Ming-Xing Luo, Lian-You Shan, Kai Wang, Liucheng Wang

TL;DR
This paper explores the detection prospects of supersymmetric light stau particles at the LHC, focusing on enhanced production channels and tau decay signatures to improve discovery potential.
Contribution
It introduces a novel analysis of stau pair production via b-bbar fusion and gaugino pairs, emphasizing leptonic and hadronic tau channels for SUSY detection.
Findings
Same-sign dilepton signals can significantly enhance discovery prospects.
Hadronic tau channels require high luminosity, making early discovery challenging.
At 14 TeV, 100 fb^{-1} data may be needed for 5σ discovery.
Abstract
Motivated by the observed excess of the di-photon signal in Higgs searches, , we argue that models with enhanced alone are the most favorable scenarios when the latest LHC/Tevatron results are all taken into account. We study the phenomenology of a supersymmetric scenario of light stau first proposed by \textit{Carena et. al. \cite{carlos}} that predicts a 125 GeV SM-like Higgs boson with enhanced diphoton decay through light stau loops. Since it is extremely challenging to search the Drell-Yan stau pair at the LHC due to the small production rate, we focus on the parameter space with enhanced production of inclusive stau pairs, in particular, via fusion or gaugino pairs. We study its phenomenology in both pure leptonic tau channels and hadronic tau tagged channels. We find…
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