Alignment of the ATLAS Inner Detector in Run 2

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dc.contributor.authorAad G.
dc.contributor.authorAbbott B.
dc.contributor.authorAbbott D.C.
dc.contributor.authorAbud A.A.
dc.contributor.authorAbeling K.
dc.contributor.authorAbhayasinghe D.K.
dc.contributor.authorAbidi S.H.
dc.contributor.authorAbouZeid O.S.
dc.contributor.authorAbraham N.L.
dc.contributor.authorAbramowicz H.
dc.contributor.authorAbreu H.
dc.contributor.authorAbulaiti Y.
dc.date.accessioned2021-08-09T22:34:58Z
dc.date.available2021-08-09T22:34:58Z
dc.date.issued2020-12
dc.descriptionIndexación Scopuses
dc.description.abstractThe performance of the ATLAS Inner Detector alignment has been studied using pp collision data at s=13TeV 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. The residual sagitta bias and momentum scale bias after alignment are reduced to less than ∼0.1TeV-1 and 0.9 × 10 - 3, respectively. Impact parameter biases are also evaluated using tracks within jets. © 2020, The Author(s).es
dc.description.urihttps://link-springer-com.recursosbiblioteca.unab.cl/article/10.1140%2Fepjc%2Fs10052-020-08700-6
dc.identifier.citationEuropean Physical Journal C, Volume 80, Issue 12December 2020 Article number 1194es
dc.identifier.doi10.1140/epjc/s10052-020-08700-6
dc.identifier.issn14346044
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/19752
dc.language.isoenes
dc.publisherSpringer Science and Business Media Deutschland GmbHes
dc.subjectTop Quarkes
dc.subjectPartonses
dc.subjectHiggs Bosonses
dc.titleAlignment of the ATLAS Inner Detector in Run 2es
dc.typeArtículoes
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