Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/591
Title: Search for vector-like leptons at the Large Hadron Collider
Authors: DUBE, SOURABH
SANTPUR, SAI NEHA
Dept. of Physics
20111017
Keywords: 2016
experimental high energy physics
LHC, vector-like leptons
Issue Date: May-2016
Abstract: I study the scope of discovering vector-like leptons at the Large Hadron Collider. Unlike the Standard Model leptons, vector-like leptons are non-chiral. Many beyond the Standard Model theories like composite Higgs model, warped extra-dimensions, supersymmetry predict the existence of such leptons. I studied vector-like lepton model in a multilepton final state using an ATLAS 8 TeV search result. I exclude vector-like leptons with masses below 150-280 GeV depending on specific model parameters. I study the doublet model at center of mass energy of 13 TeV using a multilepton final state. I design signal regions to maximize signal to background ratio and I make predictions about the sensitivity of multilepton final state to the vector-like lepton model. Using the optimized signal region, I predict 95% CL exclusion limit for a luminosity of 20 fb^{-1}. I excluded vector-like leptons in the doublet model having masses below 365 GeV.
URI: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/591
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