Virtual corrections to top-pair production from new physics
Simone Tentori
TL;DR
This paper investigates how new physics models affect top-quark pair production distributions, using automated tools to analyze Higgs couplings, BSM scalars, pseudoscalars, and ALPs.
Contribution
It introduces models in UFO format for automated computation of top-pair production modifications due to various new physics scenarios.
Findings
Models implemented in UFO format enable automatic analysis.
Modified distributions can constrain Higgs-top couplings.
Search strategies for BSM scalars, pseudoscalars, and ALPs are proposed.
Abstract
New physics and SM parameters can be studied and constrained by looking at the modifications to top-pair differential kinematical distributions due to off-shell effects. I present here three case studies: the determination of the Higgs couplings to the top-quark, a search for generic BSM scalar and pseudoscalar states, and a search for Axion Like Particles (ALP). The corresponding models have been implemented in the format to allow automatic computations within MadGraph5_aMC@NLO.
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Taxonomy
TopicsScientific Computing and Data Management