Extended Scalar Sector and Fat Jets

TL;DR

This paper explores the measurement of Higgs boson couplings at the LHC using an effective theory framework, emphasizing the role of jet substructure techniques in improving parameter determination.

Contribution

It introduces a comprehensive analysis method combining Higgs coupling measurements with jet substructure techniques within the SFitter framework.

Findings

Effective Higgs coupling parameter space mapping

Enhanced precision with jet substructure methods

Analysis of parameter correlations and errors

Abstract

After a discovery of the Higgs boson the next question is what are its couplings. At the LHC there should be many observable channels which can be exploited to measure the relevant parameters in the Higgs sector. Using the SFitter framework we map these measurements onto the parameter space of a weak-scale effective theory with free Higgs boson couplings. Our analysis benefits from the parameter determination tools and the error treatment used in new-physics searches, to study individual parameters and their error bars as well as parameter correlations. A special focus we will put on recent analyses using jet substructure techniques.