Analytic Boosted Boson Discrimination at the Large Hadron Collider

TL;DR

This paper introduces a field theoretic framework for systematically calculating groomed multi-prong jet substructure observables at the LHC, including full spectrum predictions that incorporate both perturbative and non-perturbative effects.

Contribution

It presents the first comprehensive calculation of groomed tagging observable spectra using a new effective theory approach, enhancing precision in jet substructure analysis.

Findings

Full spectrum predictions for groomed observables at the LHC.

Systematic treatment of perturbative and non-perturbative effects.

Improved understanding of jet substructure for new physics searches.

Abstract

Jet substructure is playing a central role at the Large Hadron Collider (LHC) probing the Standard Model in extreme regions of phase space and providing innovative ways to search for new physics. Analytic calculations of experimentally successful observables are a primary catalyst driving developments in jet substructure, allowing for a deeper understanding of observables and for the exploitation of increasingly subtle features of jets. In this paper we present a field theoretic framework enabling systematically improvable calculations of groomed multi-prong substructure observables, which builds on recent developments in multi-scale effective theories. We use this framework to compute for the first time the full spectrum for groomed tagging observables at the LHC, carefully treating both perturbative and non-perturbative contributions in all regions. Our analysis enables a precision understanding which we hope will improve the reach and sophistication of jet substructure techniques at the LHC.