Non collision background for ATLAS detector

The main task of the group is characterisation and migitation of non-collision background in ATLAS analyses.

Main sources of NBC:

  • Machine induced background
  • Cosmic-ray background
  • Instrumental background

My work is centered about machine induced background. There are many types of this background but the main sources around the ATLAS detector are the beam-gas scattering (elastic and inelastic) and beam halo. Simple diagram showing the creation of these backgrounds is shown in the figure below.

imgedeb8b152e9c531f09031b2a5c261ff9.png

Simulation of both background sources are done using the FLUKA software and some existing data sets are located at:

http://bbgen.web.cern.ch/bbgen/

LHC

HL-LHC

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Topic revision: r1 - 20 Mar 2018 - HelenaLefebvre

 
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