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New features in the JHU generator framework: constraining Higgs boson properties from on-shell and off-shell production

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arxiv 2002.09888 v4 pith:74PSFONK submitted 2020-02-23 hep-ph hep-ex

New features in the JHU generator framework: constraining Higgs boson properties from on-shell and off-shell production

Andrei V. Gritsan , Jeffrey Roskes , Ulascan Sarica , Markus Schulze , Meng Xiao , Yaofu Zhou This is my paper
classification hep-ph hep-ex
keywords bosonfeaturessimulationanalysisanomalousframeworkfusiongenerator
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present an extension of the JHUGen and MELA framework, which includes an event generator and library for the matrix element analysis. It enables simulation, optimal discrimination, reweighting techniques, and analysis of a bosonic resonance and the triple and quartic gauge boson interactions with the most general anomalous couplings. The new features, which become especially relevant at the current stage of LHC data taking, are the simulation of gluon fusion and vector boson fusion in the off-shell region, associated $ZH$ production at NLO QCD including the $gg$ initial state, and the simulation of a second spin-zero resonance. We also quote translations of the anomalous coupling measurements into constraints on dimension-six operators of an effective field theory. Some of the new features are illustrated with projections for experimental measurements with the full LHC and HL-LHC datasets.

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