2024-03-28T20:19:35Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2298432022-11-17T08:59:06Zcom_10261_61com_10261_4col_10261_314
Alignment of the ATLAS Inner Detector in Run 2
ATLAS Collaboration
Aparisi Pozo, J.A.
Bailey, A.J.
Cabrera, Susana
Castillo, F.L.
Castillo Mª Victoria
Costa, María José
Escobar, Carlos
Estrada, Oscar
Ferrer, Antonio
Fiorini, L.
Fullana, Esteban
Fuster, Juan
García García, Carmen
García Navarro, José Enrique
González de la Hoz, Santiago
Gonzalvo Rodríguez, Galo Rafael
Guerrero Rojas, J.G.R.
Higón, Emilio
Lacasta Llácer, Carlos
Lozano Bahilo, José J.
Madaffari, Daniele
Mamuzic, Judita
Martí García, Salvador
Martinez Agullo, Pablo
Mitsou, Vasiliki A.
Moreno Llácer, María
Navarro Gonzalez, Josep
Poveda Torres, Joaquin
Prades Ibañez, Alberto
Rodriguez Bosca, S.
Ruiz Martínez, Arantxa
Salt, José
Santra, A.
Sayago Galvan, Ivan
Soldevila, Urmila
Valero, Alberto
Sánchez Martínez, Javier
Torró Pastor, Emma
Valero, Alberto
Valls Ferrer, Juan Antonio
Vos, Marcel
Ministerio de Ciencia e Innovación (España)
The 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 , respectively. Impact parameter biases are also evaluated using tracks within jets.
2021-02-17T09:30:19Z
2021-02-17T09:30:19Z
2020-12
2021-02-17T09:30:20Z
artículo
http://purl.org/coar/resource_type/c_6501
doi: 10.1140/epjc/s10052-020-08700-6
issn: 1434-6052
European Physical Journal C 80: 1194 (2020)
http://hdl.handle.net/10261/229843
10.1140/epjc/s10052-020-08700-6
http://dx.doi.org/10.13039/501100004837
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info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-094856-B-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104301RB-C21
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-110189RB-C21
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-094270-B-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-100863-B-I00
Publisher's version
http://dx.doi.org/10.1140/epjc/s10052-020-08700-6
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open
Springer