SModelS v3: Going Beyond Z2 Topologies

TL;DR

SModelS v3 advances the reinterpretation of LHC search results by supporting arbitrary topologies through a graph-based approach, incorporating new searches for mediators, and analyzing complex models with multiple mediators.

Contribution

The paper introduces a fully restructured SModelS v3 that handles arbitrary signal topologies and includes new experimental searches, expanding beyond Z2 symmetry limitations.

Findings

Supports arbitrary topologies with a graph-based description

Includes new searches for spin-1 and spin-0 mediators

Analyzes a two-mediator model for resonance and missing energy signals

Abstract

SModelS is a public tool for fast reinterpretation of LHC searches for new physics based on a large database of simplified model results. While previous versions were limited to models with a Z2-type symmetry, such as R-parity conserving supersymmetry, version 3 can now handle arbitrary signal topologies. To this end, the tool was fully restructured and now relies on a graph-based description of simplified model topologies. In this work, we present the main conceptual changes and novel features of SModelS v3, together with the inclusion of new experimental searches for resonant production of spin-1 and spin-0 mediators with decays to quarks or to dark matter. Applying these results to a model containing two mediators, we discuss the interplay of resonance and missing energy searches, and the model's coverage by the currently available simplified model results.