LHCb Masterclass Software Documentation


The LHCb Masterclass exercise was implemented as a stand-alone application using C++ and ROOT, a framework developed by CERN for data analysis. In the first part of the exercise the focus is on visualization of events recorded by the LHCb detector, where an event represents a set of charged particle tracks in one proton-proton collision. Every particle track is coloured by its type and can be selected to see its essential information such as mass and momentum. The application allows students to save this information and calculate the invariant mass for any pair of particles. Furthermore, the students can use additional calculating tools in the application and build up a histogram of these invariant masses.

The application offers detailed instructions and inline help available in five languages: English, Italian, French, German and Romanian.

Video tutorial

You can see the video here.

Code repository

The software can be checked out with:

git clone /afs/cern.ch/lhcb/software/GIT/LHCbMasterclass.git

OpenData Virtual Machine documentation:

It is available on AFS in the follwoing directory: /afs/cern.ch/lhcb/group/Outreach/LHCbMasterclass/VM

-- BenjaminCouturier - 2015-03-03

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