Run2 new physics search example with ADL/CutLang: Glossary

ADL is a declarative domain specific language (DSL) that describes the physics content of a HEP analysis in a standard and unambiguous way.

ADL’s purpose is to decouple the physics logic of analyses from technical operations, and make the physics logic more accessible.

CutLang is a runtime interpreter that reads and understands the ADL syntax and runs it on events.

For up-to-date details for installing CutLang, the official documentation is the best bet.

Make sure you were able to setup CutLang via Docker and run its hello-world example.

Running CLA is the only thing that a user must know in order to work with CutLang

The domain-specific and declarative nature of ADL makes it easy to express and communicate complex and extensive analysis algorithms.

Basic selection requirements are implemented very easily using ADL.

In a HEP analysis, we usually see two types of plots: distribution shape comparisons between different processes (normalized to a constant, e.g. 1), and plots showing data, backgrounds and signals (normalized to integrated luminosity).

Once an ADL analysis is run by CutLang, the output files can be analyzed with simple ROOT scripts to obtain both types of plots.