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，可在满足Z₂对称性的任意新物理模型框架内，对大型强子对撞机（Large Hadron Collider，LHC）的简化模型结果开展快速解读。本文提出SModelS的新版本，该版本如今可利用ATLAS合作组以pyhf JSON文件格式提供的完整似然函数。此举极大优化了统计评估流程，同时也提升了新物理情景的极限约束设定精度。