Limits and Fits from Simplified Models

TL;DR

This paper evaluates the effectiveness of simplified models in interpreting LHC searches for new physics, finding they provide reliable and moderately accurate limits compared to complete supersymmetric models.

Contribution

It compares simplified models with complete supersymmetric and same-spin models, demonstrating the reliability of simplified models for current LHC analyses.

Findings

Mass limits from simplified and complete models are moderately consistent.

Simplified models are effective for model-independent interpretation.

Current LHC sensitivity supports the use of simplified models.

Abstract

An important tool for interpreting LHC searches for new physics are simplified models. They are characterized by a small number of parameters and thus often rely on a simplified description of particle production and decay dynamics. We compare the interpretation of current LHC searches for hadronic jets plus missing energy signatures within simplified models with the interpretation within complete supersymmetric and same-spin models of quark partners. We found that the differences between the mass limits derived from a simplified model and from the complete models are moderate given the current LHC sensitivity. We conclude that simplified models provide a reliable tool to interpret the current hadronic jets plus missing energy searches at the LHC in a more model-independent way.