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Alignment of the ATLAS Inner Detector in Run-2

  1. 1.
    0540750 - FZÚ 2021 RIV DE eng J - Článek v odborném periodiku
    Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Latoňová, Věra - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek
    Alignment of the ATLAS Inner Detector in Run-2.
    European Physical Journal C. Roč. 80, č. 12 (2020), s. 1-41, č. článku 1194. ISSN 1434-6044. E-ISSN 1434-6052
    Grant CEP: GA MŠk(CZ) LM2018104; GA MŠk(CZ) LTT17018
    Institucionální podpora: RVO:68378271
    Klíčová slova: CERN LHC Coll * tracks * impact parameter
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Obor OECD: Particles and field physics
    Impakt faktor: 4.590, rok: 2020
    http://hdl.handle.net/11104/0318356

    The performance of the ATLAS Inner Detector alignment has been studied using pp collision data at sqrt{s} = 13,hbox {TeV} collected by the ATLAS experiment during Run 2 (2015–2018) of the Large Hadron Collider (LHC). The goal of the detector alignment is to determine the detector geometry as accurately as possible and correct for time-dependent movements. The Inner Detector alignment is based on the minimization of track-hit residuals in a sequence of hierarchical levels, from global mechanical assembly structures to local sensors. Subsequent levels have increasing numbers of degrees of freedom, in total there are almost 750,000. The alignment determines detector geometry on both short and long timescales, where short timescales describe movements within an LHC fill. The performance and possible track parameter biases originating from systematic detector deformations are evaluated. Momentum biases are studied using resonances decaying to muons or to electrons.
    Trvalý link: http://hdl.handle.net/11104/0318356

     
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