Alignment of the ATLAS Inner Detector in Run 2
The performance of the ATLAS Inner Detector alignment has been studied using pp collision data at √s = 13 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 possi...
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| Autores principales: | , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2020
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/125529 |
| Aporte de: |
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I19-R120-10915-125529 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física Particle physics Physics Collision Hadron Atlas (anatomy) Atlas experiment Detector geometry Detector |
| spellingShingle |
Física Particle physics Physics Collision Hadron Atlas (anatomy) Atlas experiment Detector geometry Detector Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration Alignment of the ATLAS Inner Detector in Run 2 |
| topic_facet |
Física Particle physics Physics Collision Hadron Atlas (anatomy) Atlas experiment Detector geometry Detector |
| description |
The performance of the ATLAS Inner Detector alignment has been studied using pp collision data at √s = 13 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. The residual sagitta bias and momentum scale bias after alignment are reduced to less than ∼ 0.1 TeV⁻¹ and 0.9 × 10⁻³, respectively. Impact parameter biases are also evaluated using tracks within jets. |
| format |
Articulo Articulo |
| author |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_facet |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_sort |
Alonso, Francisco |
| title |
Alignment of the ATLAS Inner Detector in Run 2 |
| title_short |
Alignment of the ATLAS Inner Detector in Run 2 |
| title_full |
Alignment of the ATLAS Inner Detector in Run 2 |
| title_fullStr |
Alignment of the ATLAS Inner Detector in Run 2 |
| title_full_unstemmed |
Alignment of the ATLAS Inner Detector in Run 2 |
| title_sort |
alignment of the atlas inner detector in run 2 |
| publishDate |
2020 |
| url |
http://sedici.unlp.edu.ar/handle/10915/125529 |
| work_keys_str_mv |
AT alonsofrancisco alignmentoftheatlasinnerdetectorinrun2 AT arduhfranciscoanuar alignmentoftheatlasinnerdetectorinrun2 AT dovamariateresa alignmentoftheatlasinnerdetectorinrun2 AT hoyajoaquin alignmentoftheatlasinnerdetectorinrun2 AT monticellifernandogabriel alignmentoftheatlasinnerdetectorinrun2 AT wahlberghernanpablo alignmentoftheatlasinnerdetectorinrun2 AT theatlascollaboration alignmentoftheatlasinnerdetectorinrun2 |
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Repositorios |
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1764820451819782145 |