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Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons

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Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons

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dc.contributor.author	ATLAS Collaboration
dc.contributor.author	Castillo Giménez, María Victoria
dc.contributor.author	Ferrer Soria, Antonio
dc.contributor.author	Fuster Verdú, Juan A.
dc.contributor.author	García García, Carmen
dc.contributor.author	González de la Hoz, Santiago
dc.contributor.author	Hernández Jiménez, Yesenia
dc.contributor.author	Higón Rodríguez, Emilio
dc.contributor.author	Lacasta Llácer, Carlos
dc.contributor.author	Martí García, Salvador
dc.contributor.author	Ros Martínez, Eduardo
dc.contributor.author	Salt Cairols, José
dc.contributor.author	Sanchis Lozano, Miguel Ángel
dc.contributor.author	Valls Ferrer, Juan Antonio
dc.contributor.author	Villaplana Pérez, Miguel
dc.date.accessioned	2014-05-14T13:28:41Z
dc.date.available	2014-05-14T13:28:41Z
dc.date.issued	2010
dc.identifier.citation	Atlas Collaboration Castillo Giménez, María Victoria Ferrer Soria, Antonio Fuster Verdú, Juan A. García García, Carmen González de la Hoz, Santiago Hernández Jiménez, Yesenia Higón Rodríguez, Emilio Lacasta Llácer, Carlos Martí García, Salvador Ros Martínez, Eduardo Salt Cairols, José Sanchis Lozano, Miguel Angel Valls Ferrer, Juan Antonio Villaplana Pérez, Miguel 2010 Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons European Physical Journal C 70 3 755 785
dc.identifier.uri	http://hdl.handle.net/10550/35192
dc.description.abstract	The ionization signals in the liquid argon of the ATLAS electromagnetic calorimeter are studied in detail using cosmic muons. In particular, the drift time of the ionization electrons is measured and used to assess the intrinsic uniformity of the calorimeter gaps and estimate its impact on the constant term of the energy resolution. The drift times of electrons in the cells of the second layer of the calorimeter are uniform at the level of 1.3 % in the barrel and 2.8 % in the endcaps. This leads to an estimated contribution to the constant term of (0.29 +0.05 -0.04) % in the barrel and (0.54 +0.06 -0.04) % in the endcaps. The same data are used to measure the drift velocity of ionization electrons in liquid argon, which is found to be 4.61 +- 0.07 mm/\mu s at 88.5 K and 1 kV/mm.
dc.relation.ispartof	European Physical Journal C, 2010, vol. 70, num. 3, p. 755-785
dc.subject	Partícules (Física nuclear)
dc.subject	Detectors de radiació
dc.subject	Acceleradors de partícules
dc.title	Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons
dc.type	journal article	es_ES
dc.date.updated	2014-05-14T13:28:41Z
dc.identifier.doi	10.1140/epjc/s10052-010-1403-6
dc.identifier.idgrec	061926
dc.rights.accessRights	open access	es_ES
dc.identifier.url	10.1140/epjc/s10052-010-1403-6