Abstract
Electroweak-interacting massive particles (EWIMPs) exist in a broad class of new physics models beyond the Standard Model. Searching for such particles is one of most primary goal at the LHC and future colliders. The EWIMP generally affects the LHC signatures through quantum corrections even without direct productions. By measuring the Standard Model processes precisely, we can indirectly probe the EWIMPs. In this paper, we study the current constraint and future prospect of the EWIMPs by using the precision measurements of mono-lepton production from the charged Drell-Yan processes at hadron colliders. We found the mono-lepton signature can be a better probe than dilepton signature from the neutral Drell-Yan processes.
Highlights
This framework is compatible with the so-called “mini-split SUSY” scenario [22,23,24,25,26,27], and the discovery of the 125 GeV Higgs boson [28, 29] triggers this framework to attract more and more attention [30,31,32,33,34,35,36]
We find that the mono-lepton signatures at the hadron collider is useful probe of the Electroweak-interacting massive particles (EWIMPs) and potentially its sensitivity is better than the dilepton signatures
Instead of direct production of new physics particles, we focus on the the quantum effect from the EWIMPs
Summary
In the Standard Model, the mono-lepton and missing energy signatures come from a virtual W boson exchange This process has a reasonably large cross section, and is often utilized for a heavy W search. The interference between the EWIMP loop and the Standard Model processes affects the cross section of the mono-lepton productions. In figure 3, we show the EWIMP correction to the transverse mass distribution for 13 TeV LHC running. To estimate this correction, we generate the SM mono-lepton signals, by using the program MG5 aMC@NLO [53, 54]. In figure 3, we show the EWIMP correction to the transverse mass distribution at the 13 TeV LHC. We discuss how we can test this deviation from the Standard Model case
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