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Alignment of the ATLAS Inner Detector in Run-2

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    SYSNO ASEP0540750
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleAlignment of the ATLAS Inner Detector in Run-2
    Author(s) Aad, G. (FR)
    Abbott, B. (US)
    Abbott, D.C. (US)
    Chudoba, Jiří (FZU-D) RID, ORCID
    Hejbal, Jiří (FZU-D) RID, ORCID
    Hladík, Ondřej (FZU-D)
    Jačka, Petr (FZU-D)
    Kepka, Oldřich (FZU-D) RID, ORCID
    Kroll, Jiří (FZU-D) ORCID
    Kupčo, Alexander (FZU-D) RID, ORCID
    Latoňová, Věra (FZU-D) ORCID
    Lokajíček, Miloš (FZU-D) RID, ORCID
    Lysák, Roman (FZU-D) RID, ORCID
    Marčišovský, Michal (FZU-D) RID, ORCID
    Mikeštíková, Marcela (FZU-D) RID, ORCID
    Němeček, Stanislav (FZU-D) RID, ORCID
    Penc, Ondřej (FZU-D) ORCID
    Šícho, Petr (FZU-D) RID, ORCID
    Staroba, Pavel (FZU-D) RID, ORCID
    Svatoš, Michal (FZU-D) RID, ORCID
    Taševský, Marek (FZU-D) RID, ORCID
    Number of authors2942
    Article number1194
    Source TitleEuropean Physical Journal C - ISSN 1434-6044
    Roč. 80, č. 12 (2020), s. 1-41
    Number of pages41 s.
    Languageeng - English
    CountryDE - Germany
    KeywordsCERN LHC Coll ; tracks ; impact parameter
    Subject RIVBF - Elementary Particles and High Energy Physics
    OECD categoryParticles and field physics
    R&D ProjectsLM2018104 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    LTT17018 GA MŠk - Ministry of Education, Youth and Sports (MEYS)
    Method of publishingOpen access
    Institutional supportFZU-D - RVO:68378271
    UT WOS000603037700005
    EID SCOPUS85098084298
    AnnotationThe 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.
    WorkplaceInstitute of Physics
    ContactKristina Potocká,, Tel.: 220 318 579
    Year of Publishing2021
    Electronic address
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