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Type: Journal article
Title: Boosting the charged Higgs search prospects using jet substructure at the LHC
Author: Li, J.
Patrick, R.
Sharma, P.
Williams, A.
Citation: Journal of High Energy Physics, 2016; 2016(11):164-1-164-27
Publisher: Springer
Issue Date: 2016
ISSN: 1126-6708
Statement of
Jinmian Li, Riley Patrick, Pankaj Sharma, Anthony G. Williams
Abstract: Charged Higgs bosons are predicted in variety of theoretically well-motivated new physics models with extended Higgs sectors. In this study, we focus on a type-II two Higgs doublet model (2HDM-II) and consider a heavy charged Higgs with its mass ranging from 500 GeV to 1 TeV as dictated by the b → sγ constraints which render MH± > 480 GeV. We study the dominant production mode H±t associated production with H± → W±A being the dominant decay channel when the pseudoscalar A is considerably lighter. For such a heavy charged Higgs, both the decay products W± and A are relatively boosted. In such a scenario, we apply the jet substructure analysis of tagging the fat pseudoscalar and W jets in order to eliminate the standard model background efficiently. We perform a detailed detector simulation for the signal and background processes at the 14 TeV LHC. We introduce various kinematical cuts to determine the signal significance for a number of benchmark points with charged Higgs boson mass from 500 GeV to 1 TeV in the W±A decay channel. Finally we perform a multivariate analysis utilizing a boosted decision tree algorithm to optimize these significances.
Keywords: Beyond standard model; Higgs physics
Rights: Open Access, © The Authors. Article funded by SCOAP3.
RMID: 0030059741
DOI: 10.1007/JHEP11(2016)164
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Appears in Collections:Physics publications

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