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Portrait of RP

Ruth Pöttgen

Senior Lecturer

Portrait of RP

Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at Ebeam=4 TeV

Author

  • M Aaboud
  • Torsten Åkesson
  • Simona Bocchetta
  • Eric Corrigan
  • Caterina Doglioni
  • Eva Brottmann Hansen
  • Vincent Hedberg
  • Göran Jarlskog
  • Charles Kalderon
  • Edgar Kellermann
  • Balazs Konya
  • Else Lytken
  • Katja Mankinen
  • Ulf Mjörnmark
  • R. Poettgen
  • Trine Poulsen
  • Oxana Smirnova
  • Oleksandr Viazlo
  • L. Zwalinski
Show all

Summary, in English

Results of dedicated Monte Carlo simulations of beam-induced background (BIB) in the ATLAS experiment at the Large Hadron Collider (LHC) are presented and compared with data recorded in 2012. During normal physics operation this background arises mainly from scattering of the 4 TeV protons on residual gas in the beam pipe. Methods of reconstructing the BIB signals in the ATLAS detector, developed and implemented in the simulation chain based on the \textsc{Fluka} Monte Carlo simulation package, are described. The interaction rates are determined from the residual gas pressure distribution in the LHC ring in order to set an absolute scale on the predicted rates of BIB so that they can be compared quantitatively with data. Through these comparisons the origins of the BIB leading to different observables in the ATLAS detectors are analysed. The level of agreement between simulation results and BIB measurements by ATLAS in 2012 demonstrates that a good understanding of the origin of BIB has been reached. © 2018 CERN for the benefit of the ATLAS collaboration.

Department/s

  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration

Publishing year

2018

Language

English

Publication/Series

Journal of Instrumentation

Volume

13

Issue

12

Document type

Journal article

Publisher

IOP Publishing

Topic

  • Accelerator Physics and Instrumentation
  • Subatomic Physics

Keywords

  • Accelerator modelling and simulations (multi-particle dynamics
  • Radiation calculations
  • Simulation methods and programs
  • single-particle dynamics)
  • Colliding beam accelerators
  • Intelligent systems
  • Tellurium compounds
  • ATLAS detectors
  • ATLAS experiment
  • Interaction rate
  • Large Hadron collider LHC
  • Modelling and simulations
  • Residual gas pressure
  • Single-particle dynamics
  • Monte Carlo methods

Status

Published

ISBN/ISSN/Other

  • ISSN: 1748-0221