@article{f357062886f74d92a098c68bb8e2006d,
title = "The ATLAS experiment at the CERN Large Hadron Collider: a description of the detector configuration for Run 3",
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.",
keywords = "Calorimeter methods, Large detector systems for particle and astroparticle physics, Muon spectrometers, Particle tracking detectors",
author = "{The ATLAS Collaboration} and M. Amerl and Filmer, {E. K.} and P. Jackson and Kong, {A. X.Y.} and H. Potti and Ruggeri, {T. A.} and Ting, {E. X.L.} and White, {M. J.} and Davis, {P. M.} and Gingrich, {D. M.} and Lindon, {J. H.} and N. Nishu and Pinfold, {J. L.} and R. Soluk and O. Cakir and {Duran Yildiz}, H. and S. Kuday and {Turk Cakir}, I. and S. Sultansoy and {Adam Bourdarios}, C. and J. Ballansat and F. Bellachia and N. Berger and T. Bouedo and S. Cap and N. Chevillot and F. Costanza and P. David and P. Delebecque and M. Delmastro and {Di Ciaccio}, L. and {Dumont Dayot}, N. and S. Elles and Fragnaud, {J. C.} and Gantel, {L. M.} and C. Goy and T. Guillemin and T. Hryn'ova and S. J{\'e}z{\'e}quel and I. Koletsou and S. Lafrasse and J. Lev{\^e}que and Lewis, {D. J.} and Little, {J. D.} and {Lorenzo Martinez}, N. and N. Massol and G. Perrot and G. Poddar and E. Rossi and {Sanchez Pineda}, A. and E. Sauvan and L. Selem and T. Todorov and I. Wingerter-Seez and G. Bernardi and M. Bomben and R. Bouquet and {Di Gregorio}, G. and A. Li and G. Marchiori and Q. Shen and Y. Zhang and S. Chekanov and S. Darmora and Hopkins, {W. H.} and J. Hoya and E. Kourlitis and T. LeCompte and J. Love and Luz, {R. J.} and J. Metcalfe and Mete, {A. S.} and A. Paramonov and J. Proudfoot and M. Trovato and {Van Gemmeren}, P. and R. Wang and J. Zhang and Armijo, {C. E.} and S. Berlendis and E. Cheu and Z. Cui and A. Ghosh and K. Gigliotti and Johns, {K. A.} and W. Lampl and Lindley, {R. E.} and P. Loch and Rutherfoord, {J. P.} and J. Sardain and Scott, {G. J.} and Solis, {M. A.} and D. Tompkins and Varnes, {E. W.} and Walker, {R. W.} and H. Zhou and Y. Zhou and J. Abdallah and {Bakshi Gupta}, D. and B. Burghgrave and Cardenas, {J. C.J.} and K. De and A. Farbin and Hadavand, {H. K.} and Myers, {A. J.} and N. Ozturk and G. Usai and A. White and S. Angelidakis and D. Fassouliotis and L. Fountas and I. Gkialas and C. Kourkoumelis and T. Alexopoulos and C. Bakalis and I. Drivas-Koulouris and Gazis, {E. N.} and A. Giokaris and P. Gkountoumis and N. Kanellos and C. Kitsaki and G. Koutelieris and E. Lampardaki and S. Maltezos and Natsios, {M. D.} and C. Paraskevopoulos and M. Perganti and P. Tzanis and S. Tzanos and S. Vlachos and T. Andeen and Burton, {C. D.} and K. Choi and Onyisi, {P. U.E.} and Panchal, {D. K.} and M. Tost and M. Unal and Webb, {A. F.} and N. Huseynov and Agaras, {M. N.} and M. Bosman and Carlotto, {J. I.} and Casado, {M. P.} and {Castillo Garcia}, L. and S. Epari and V. Gautam and Gkougkousis, {E. L.} and {Gonzalez Fernandez}, S. and C. Grieco and S. Grinstein and {Juste Rozas}, A. and S. Kazakos and I. Korolkov and J. Mamuzic and M. Martinez and {Martinez Suarez}, P. and Mir, {L. M.} and {Munoz Martinez}, {J. L.} and N. Orlando and {Pacheco Pages}, A. and {Padilla Aranda}, C. and I. Riu and {Salvador Salas}, A. and A. Sonay and S. Terzo and {Barreiro Guimar{\~a}es da Costa}, J. and Y. Cai and X. Chu and H. Cui and Y. Fan and Y. Fang and F. Guo and Hu, {Y. F.} and Y. Huang and X. Jia and M. Li and S. Li and Z. Li and Z. Liang and B. Liu and P. Liu and X. Lou and G. Lu and F. Lyu and Mohammed, {A. F.} and Shan, {L. Y.} and J. Wu and S. Xin and D. Xu and Z. Xu and X. Yang and M. Zhai and K. Zhang and P. Zhang and C. Zhu and H. Zhu and X. Zhuang and X. Chen and M. Feng and H. Pang and M. Xia and Y. Xu and Ayoub, {M. K.} and H. Chen and Chen, {S. J.} and {De Maria}, A. and L. Han and X. Huang and Z. Jia and S. Jin and H. Li and Y. Liu and {Lucio Alves}, {F. L.} and T. Min and X. Wang and Y. Wang and L. Xia and H. Ye and B. Zhang and L. Zhang and K. Ran and E. Bakos and Beemster, {L. J.} and J. Jovicevic and V. Maksimovic and G. Mladenovic and Dj Sijacki and N. Vranjes and {Vranjes Milosavljevic}, M. and L. {\v Z}ivkovi{\'c} and T. Buanes and Djuvsland, {J. I.} and G. Eigen and N. Fomin and Huiberts, {S. K.} and Lee, {G. R.} and A. Lipniacka and {Martin dit Latour}, B. and Sherpa, {P. N.} and B. Stugu and A. Traeet and Antrim, {D. J.A.} and Barnett, {R. M.} and J. Beringer and P. Calafiura and F. Cerutti and A. Ciocio and A. Dimitrievska and Dyckes, {G. I.} and J. Shojaii",
note = "Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",
year = "2024",
month = may,
doi = "10.1088/1748-0221/19/05/P05063",
language = "English",
volume = "19",
pages = "1--222",
journal = "Journal of Instrumentation",
issn = "1748-0221",
publisher = "IOP Publishing",
number = "5",
}