Particle Physics Seminar

ZFit and the analysis software ecosystem

by Jonas Eschle (Uni Zürich)

Nußallee 12/1-1.049 - Conference Room II (PI)

Nußallee 12/1-1.049 - Conference Room II



A typical HEP user analysis involves to write code for the selection of events, the proper treatment of data and simulation and statistical inference. The tasks go from small scripts to more elaborate frameworks which often rely on shared libraries and common tools, the analysis software ecosystem.
In this talk we will look at the software side of analysis, introducing the obstacles and developments of HEP analysis libraries. In particular, we will look at zfit, a Python library and a part of the Python ecosystem for likelihood fiiting in HEP. zfit provides an extensive model building part and a well defined workflow in order to integrate into the ecosystem, supporting a variety of models for binned and unbinned fits. Furthermore, the main challenges provided by the need for complex custom models, user friendly design, performant code and likelihood preservation will be discussed.

Organized by

Oleh Kivernyk, Tatjana Lenz