# SModelS v1.1 user manual

## TL;DR

SModelS v1.1 is an enhanced automated tool for interpreting LHC simplified model results, now incorporating efficiency maps, likelihood calculations, and speed improvements to better constrain new physics models.

## Contribution

The paper introduces SModelS v1.1, which extends previous capabilities by including efficiency maps, likelihood computations, and database enhancements for improved model testing.

## Key findings

- Increased constraining power with efficiency maps.
- Enhanced speed and database size.
- Ability to perform likelihood and chi-square analyses.

## Abstract

SModelS is an automatised tool for the interpretation of simplified model results from the LHC. It allows to decompose models of new physics obeying a Z2 symmetry into simplified model components, and to compare these against a large database of experimental results. The first release of SModelS, v1.0, used only cross section upper limit maps provided by the experimental collaborations. In this new release, v1.1, we extend the functionality of SModelS to efficiency maps. This increases the constraining power of the software, as efficiency maps allow to combine contributions to the same signal region from different simplified models. Other new features of version 1.1 include likelihood and chi-square calculations, extended information on the topology coverage, an extended database of experimental results as well as major speed upgrades for both the code and the database. We describe in detail the concepts and procedures used in SModelS, explaining in particular how upper limits and efficiency map results are dealt with in parallel. Detailed instructions for code usage are also provided.