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Study of the material of the ATLAS inner detector for Run 2 of the LHC

Aaboud, M; Aad, G; Abbott, B.; Abdallah, J; Abdinov, O; Abeloos, B; Åkesson, Torsten LU ; Bocchetta, Simona LU ; Doglioni, Caterina LU and Hedberg, Vincent LU , et al. (2017) In Journal of Instrumentation 12(12).
Abstract
The ATLAS inner detector comprises three different sub-detectors: the pixel detector, the silicon strip tracker, and the transition-radiation drift-tube tracker. The Insertable B-Layer, a new innermost pixel layer, was installed during the shutdown period in 2014, together with modifications to the layout of the cables and support structures of the existing pixel detector. The material in the inner detector is studied with several methods, using a low-luminosity s=13 TeV pp collision sample corresponding to around 2.0 nb-1 collected in 2015 with the ATLAS experiment at the LHC. In this paper, the material within the innermost barrel region is studied using reconstructed hadronic interaction and photon conversion vertices. For the forward... (More)
The ATLAS inner detector comprises three different sub-detectors: the pixel detector, the silicon strip tracker, and the transition-radiation drift-tube tracker. The Insertable B-Layer, a new innermost pixel layer, was installed during the shutdown period in 2014, together with modifications to the layout of the cables and support structures of the existing pixel detector. The material in the inner detector is studied with several methods, using a low-luminosity s=13 TeV pp collision sample corresponding to around 2.0 nb-1 collected in 2015 with the ATLAS experiment at the LHC. In this paper, the material within the innermost barrel region is studied using reconstructed hadronic interaction and photon conversion vertices. For the forward rapidity region, the material is probed by a measurement of the efficiency with which single tracks reconstructed from pixel detector hits alone can be extended with hits on the track in the strip layers. The results of these studies have been taken into account in an improved description of the material in the ATLAS inner detector simulation, resulting in a reduction in the uncertainties associated with the charged-particle reconstruction efficiency determined from simulation. © 2017 CERN. (Less)
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Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc), Particle tracking detectors, Performance of High Energy Physics Detectors, Charged particles, High energy physics, Photons, Readout systems, Silicon detectors, Tellurium compounds, Hadronic interactions, High energy physics detector, Modelling and simulations, Particle tracking, Reconstruction efficiency, Silicon strip tracker, Support structures, Transition radiation, Pixels
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Journal of Instrumentation
volume
12
issue
12
publisher
IOP Publishing
external identifiers
  • scopus:85039771572
ISSN
1748-0221
DOI
10.1088/1748-0221/12/12/P12009
language
English
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yes
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483cecb3-0f00-4558-af5b-9084d8e19345
date added to LUP
2018-01-10 07:31:05
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2018-01-14 04:38:06
@article{483cecb3-0f00-4558-af5b-9084d8e19345,
  abstract     = {The ATLAS inner detector comprises three different sub-detectors: the pixel detector, the silicon strip tracker, and the transition-radiation drift-tube tracker. The Insertable B-Layer, a new innermost pixel layer, was installed during the shutdown period in 2014, together with modifications to the layout of the cables and support structures of the existing pixel detector. The material in the inner detector is studied with several methods, using a low-luminosity s=13 TeV pp collision sample corresponding to around 2.0 nb-1 collected in 2015 with the ATLAS experiment at the LHC. In this paper, the material within the innermost barrel region is studied using reconstructed hadronic interaction and photon conversion vertices. For the forward rapidity region, the material is probed by a measurement of the efficiency with which single tracks reconstructed from pixel detector hits alone can be extended with hits on the track in the strip layers. The results of these studies have been taken into account in an improved description of the material in the ATLAS inner detector simulation, resulting in a reduction in the uncertainties associated with the charged-particle reconstruction efficiency determined from simulation. © 2017 CERN.},
  articleno    = {P12009},
  author       = {Aaboud, M and Aad, G and Abbott, B. and Abdallah, J and Abdinov, O and Abeloos, B and Åkesson, Torsten and Bocchetta, Simona and Doglioni, Caterina and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Lytken, Else and Mjörnmark, Ulf and Poulsen, Trine and Smirnova, Oxana and Viazlo, Oleksandr and , },
  issn         = {1748-0221},
  keyword      = {Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc),Particle tracking detectors,Performance of High Energy Physics Detectors,Charged particles,High energy physics,Photons,Readout systems,Silicon detectors,Tellurium compounds,Hadronic interactions,High energy physics detector,Modelling and simulations,Particle tracking,Reconstruction efficiency,Silicon strip tracker,Support structures,Transition radiation,Pixels},
  language     = {eng},
  number       = {12},
  publisher    = {IOP Publishing},
  series       = {Journal of Instrumentation},
  title        = {Study of the material of the ATLAS inner detector for Run 2 of the LHC},
  url          = {http://dx.doi.org/10.1088/1748-0221/12/12/P12009},
  volume       = {12},
  year         = {2017},
}