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ATLAS and CMS have performed a large number of searches for physics beyondthe Standard Model (BSM). The results are typically presented in the context ofSimplified Model Spectra (SMS), containing only a few new particles with fixeddecay branching ratios, yielding generic upper limits on the cross section as afunction of particle masses. The interpretation of these limits withinrealistic BSM scenarios is non-trivial and best done by automated computationaltools. To this end we have developed SModelS, a public tool that can test anygiven BSM model with a $\mathbb{Z}_2$ symmetry by decomposing it into its SMScomponents and confronting them with a large database of SMS results. Thisallows to easily evaluate the main LHC constraints on the model. Additionally,SModelS returns information on important signatures that are not covered by theexisting SMS results. This may be used to improve the coverage of BSM searchesand SMS interpretations. We present the working principle of SModelS, inparticular the decomposition procedure, the database and matching of applicableexperimental results. Moreover, we present applications of SModelS to differentmodels: the MSSM, a model with a sneutrino as the lightest supersymmetricparticle and the UMSSM. These results illustrate how SModelS can be used toidentify important constraints, untested regions and interesting newsignatures.

Interpreting LHC searches for new physics with SModelS