Prerequisites
In order to complete this lesson you need
- ROOT CERN 6.16 or later installed. You can set up ROOT as recommended here.
- The Higgs to tau tau analysis example code installed and running. A stable internet connection to access the input data.
Helpline
Instructions written by Santeri Laurila (CERN). All example code we use is written by Stefan Wunsch (CERN). You can reach us by email (firstname.lastname@cern.ch).
Welcome! This lesson will teach you the basics of a commonly used background estimation known as the ABCD method.
We will apply this method to estimate the QCD background in the Higgs to tau tau analysis example.
Input data
The data used in this lesson are in pre-processed “NanoAOD” datasets, which are listed here. The code will access this data automatically, so you don’t need to download it manually.