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

, ; Aaboud, M; Åkesson, Torsten LU ; Bocchetta, Simona LU ; Corrigan, Eric LU ; Doglioni, Caterina LU ; Brottmann Hansen, Eva LU ; Hedberg, Vincent LU ; Jarlskog, Göran LU and Kalderon, Charles LU , et al. (2018) In Journal of Instrumentation 13(12).
Abstract
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... (More)
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. (Less)
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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
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Journal of Instrumentation
volume
13
issue
12
publisher
IOP Publishing
external identifiers
  • scopus:85059896556
ISSN
1748-0221
DOI
10.1088/1748-0221/13/12/P12006
language
English
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yes
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eea1f3df-16d0-494b-8b8f-5432be74b45c
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2019-01-24 12:46:26
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2019-05-21 04:17:51
@article{eea1f3df-16d0-494b-8b8f-5432be74b45c,
  abstract     = {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.},
  articleno    = {P12006},
  author       = {,  and Aaboud, M and Åkesson, Torsten and Bocchetta, Simona and Corrigan, Eric and Doglioni, Caterina and Brottmann Hansen, Eva and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Kellermann, Edgar and Konya, Balazs and Lytken, Else and Mankinen, Katja and Mjörnmark, Ulf and Poettgen, R. and Poulsen, Trine and Smirnova, Oxana and Viazlo, Oleksandr and Zwalinski, L.},
  issn         = {1748-0221},
  keyword      = {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},
  language     = {eng},
  number       = {12},
  publisher    = {IOP Publishing},
  series       = {Journal of Instrumentation},
  title        = {Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at Ebeam=4 TeV},
  url          = {http://dx.doi.org/10.1088/1748-0221/13/12/P12006},
  volume       = {13},
  year         = {2018},
}