G. Aad, B. Abbott, D. Abbott, J. Abdallah, K. Abeling, S. Abidi, A. Aboulhorma, S. Abovyan, H. Abramowicz, H. Abreu, Y. Abulaiti, A. Abusleme Hoffman, B. Acharya, C. Adam Bourdarios, L. Adamczyk, L. Adamek, S. Addepalli, J. Adelman, M. Adersberger, A. Adiguzel, S. Adorni, T. Adye, A. Affolder, Y. Afik, M. N. Agaras, J. Agarwala, A. Aggarwal, C. Agheorghiesei, J. A. Aguilar-Saavedra, A. Ahmad, F. Ahmadov, W. S. Ahmed, S. Ahuja, X. Ai, G. Aielli, M. Ait Tamlihat, B. Aitbenchikh, I. Aizenberg, M. Akbiyik, T. Åkesson, G. Akhperjanyan, A. V. Akimov, K. Al Khoury, G. Alberghi, J. Albert, P. Albicocco, S. Alderweireldt, M. Aleksa, I. Aleksandrov, C. Alexa, T. Alexopoulos, A. Alfonsi, F. Alfonsi, M. Alhroob, B. Ali, S. Ali, M. Aliev, G. Alimonti, W. Alkakhi, C. Allaire, J. Allard, B. Allbrooke, C. Allendes Flores, P. Allport, A. Aloisio, F. Alonso, C. Alpigiani, M. Alvarez Estevez, B. Álvarez González, M. Alviggi, M. Aly, Y. Amaral Coutinho, A. Ambler, C. Amelung, M. Amerl, C. Ames, D. Amidei, S. Amor Dos Santos,
{"title":"The ATLAS experiment at the CERN Large Hadron Collider: a description of the detector configuration for Run 3","authors":"G. Aad, B. Abbott, D. Abbott, J. Abdallah, K. Abeling, S. Abidi, A. Aboulhorma, S. Abovyan, H. Abramowicz, H. Abreu, Y. Abulaiti, A. Abusleme Hoffman, B. Acharya, C. Adam Bourdarios, L. Adamczyk, L. Adamek, S. Addepalli, J. Adelman, M. Adersberger, A. Adiguzel, S. Adorni, T. Adye, A. Affolder, Y. Afik, M. N. Agaras, J. Agarwala, A. Aggarwal, C. Agheorghiesei, J. A. Aguilar-Saavedra, A. Ahmad, F. Ahmadov, W. S. Ahmed, S. Ahuja, X. Ai, G. Aielli, M. Ait Tamlihat, B. Aitbenchikh, I. Aizenberg, M. Akbiyik, T. Åkesson, G. Akhperjanyan, A. V. Akimov, K. Al Khoury, G. Alberghi, J. Albert, P. Albicocco, S. Alderweireldt, M. Aleksa, I. Aleksandrov, C. Alexa, T. Alexopoulos, A. Alfonsi, F. Alfonsi, M. Alhroob, B. Ali, S. Ali, M. Aliev, G. Alimonti, W. Alkakhi, C. Allaire, J. Allard, B. Allbrooke, C. Allendes Flores, P. Allport, A. Aloisio, F. Alonso, C. Alpigiani, M. Alvarez Estevez, B. Álvarez González, M. Alviggi, M. Aly, Y. Amaral Coutinho, A. Ambler, C. Amelung, M. Amerl, C. Ames, D. Amidei, S. Amor Dos Santos,","doi":"10.1088/1748-0221/19/05/p05063","DOIUrl":null,"url":null,"abstract":"\n The ATLAS detector is installed in its experimental cavern\n at Point 1 of the CERN Large Hadron Collider. During Run 2 of the\n LHC, a luminosity of\n ℒ = 2 × 1034 cm-2 s-1 was\n routinely achieved at the start of fills, twice the design\n luminosity. For Run 3, accelerator improvements, notably luminosity\n levelling, allow sustained running at an instantaneous luminosity of\n ℒ = 2 × 1034 cm-2 s-1,\n with an average of up to 60 interactions per bunch crossing. The\n ATLAS detector has been upgraded to recover Run 1 single-lepton\n trigger thresholds while operating comfortably under Run 3 sustained\n pileup conditions. A fourth pixel layer 3.3 cm from the beam axis\n was added before Run 2 to improve vertex reconstruction and\n b-tagging performance. New Liquid Argon Calorimeter digital\n trigger electronics, with corresponding upgrades to the Trigger and\n Data Acquisition system, take advantage of a factor of 10 finer\n granularity to improve triggering on electrons, photons, taus, and\n hadronic signatures through increased pileup rejection. The inner\n muon endcap wheels were replaced by New Small Wheels with Micromegas\n and small-strip Thin Gap Chamber detectors, providing both precision\n tracking and Level-1 Muon trigger functionality. Trigger coverage of\n the inner barrel muon layer near one endcap region was augmented\n with modules integrating new thin-gap resistive plate chambers and\n smaller-diameter drift-tube chambers. Tile Calorimeter scintillation\n counters were added to improve electron energy resolution and\n background rejection. Upgrades to Minimum Bias Trigger Scintillators\n and Forward Detectors improve luminosity monitoring and enable total\n proton-proton cross section, diffractive physics, and heavy ion\n measurements. These upgrades are all compatible with operation in\n the much harsher environment anticipated after the High-Luminosity\n upgrade of the LHC and are the first steps towards preparing ATLAS\n for the High-Luminosity upgrade of the LHC. This paper describes\n the Run 3 configuration of the ATLAS detector.","PeriodicalId":16184,"journal":{"name":"Journal of Instrumentation","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Instrumentation","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1088/1748-0221/19/05/p05063","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
Abstract
The ATLAS detector is installed in its experimental cavern
at Point 1 of the CERN Large Hadron Collider. During Run 2 of the
LHC, a luminosity of
ℒ = 2 × 1034 cm-2 s-1 was
routinely achieved at the start of fills, twice the design
luminosity. For Run 3, accelerator improvements, notably luminosity
levelling, allow sustained running at an instantaneous luminosity of
ℒ = 2 × 1034 cm-2 s-1,
with an average of up to 60 interactions per bunch crossing. The
ATLAS detector has been upgraded to recover Run 1 single-lepton
trigger thresholds while operating comfortably under Run 3 sustained
pileup conditions. A fourth pixel layer 3.3 cm from the beam axis
was added before Run 2 to improve vertex reconstruction and
b-tagging performance. New Liquid Argon Calorimeter digital
trigger electronics, with corresponding upgrades to the Trigger and
Data Acquisition system, take advantage of a factor of 10 finer
granularity to improve triggering on electrons, photons, taus, and
hadronic signatures through increased pileup rejection. The inner
muon endcap wheels were replaced by New Small Wheels with Micromegas
and small-strip Thin Gap Chamber detectors, providing both precision
tracking and Level-1 Muon trigger functionality. Trigger coverage of
the inner barrel muon layer near one endcap region was augmented
with modules integrating new thin-gap resistive plate chambers and
smaller-diameter drift-tube chambers. Tile Calorimeter scintillation
counters were added to improve electron energy resolution and
background rejection. Upgrades to Minimum Bias Trigger Scintillators
and Forward Detectors improve luminosity monitoring and enable total
proton-proton cross section, diffractive physics, and heavy ion
measurements. These upgrades are all compatible with operation in
the much harsher environment anticipated after the High-Luminosity
upgrade of the LHC and are the first steps towards preparing ATLAS
for the High-Luminosity upgrade of the LHC. This paper describes
the Run 3 configuration of the ATLAS detector.
期刊介绍:
Journal of Instrumentation (JINST) covers major areas related to concepts and instrumentation in detector physics, accelerator science and associated experimental methods and techniques, theory, modelling and simulations. The main subject areas include.
-Accelerators: concepts, modelling, simulations and sources-
Instrumentation and hardware for accelerators: particles, synchrotron radiation, neutrons-
Detector physics: concepts, processes, methods, modelling and simulations-
Detectors, apparatus and methods for particle, astroparticle, nuclear, atomic, and molecular physics-
Instrumentation and methods for plasma research-
Methods and apparatus for astronomy and astrophysics-
Detectors, methods and apparatus for biomedical applications, life sciences and material research-
Instrumentation and techniques for medical imaging, diagnostics and therapy-
Instrumentation and techniques for dosimetry, monitoring and radiation damage-
Detectors, instrumentation and methods for non-destructive tests (NDT)-
Detector readout concepts, electronics and data acquisition methods-
Algorithms, software and data reduction methods-
Materials and associated technologies, etc.-
Engineering and technical issues.
JINST also includes a section dedicated to technical reports and instrumentation theses.