A SModelS interface for pyhf likelihoods

SModelS is an automatized tool enabling the fast interpretation of simplified model results from the LHC within any model of new physics respecting a Z_2 symmetry. We here present a new version of SModelS, which can use the full likelihoods now provided by ATLAS in the form of pyhf JSON files. This much improves the statistical evaluation and therefore also the limit setting on new physics scenarios.

SModelS是一款自动化分析工具，可针对满足Z₂对称性的任意新物理模型，快速解读大型强子对撞机（Large Hadron Collider, LHC）的简化模型实验结果。本文推出SModelS的全新版本，该版本可利用ATLAS探测器以pyhf JSON文件格式提供的完整似然值。此举大幅优化了统计评估流程，进而提升了新物理场景的实验排除极限设定精度。