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Drift time measurement in the atlas liquid argon electromagnetic calorimeter using cosmic muons

文献类型:期刊论文

AuthorAad, G.1; Abbott, B.156; Abdallah, J.13; Abdelalim, A. A.86; Abdesselam, A.163; Abdinov, O.12; Abi, B.157; Abolins, M.131; Abramowicz, H.218; Abreu, H.160
SourceEuropean physical journal c
Issued Date2010-12-01
Volume70Issue:3Pages:755-785
ISSN1434-6044
DOI10.1140/epjc/s10052-010-1403-6
Corresponding AuthorAad, g.()
English AbstractThe 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(-0.04)(+0.05))% in the barrel and (0.54(-0.04)(+0.06))% 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.
WOS KeywordCONSTRUCTION ; VELOCITY ; XE ; KR ; AR
WOS Research AreaPhysics
WOS SubjectPhysics, Particles & Fields
Language英语
WOS IDWOS:000285200000012
PublisherSPRINGER
URIhttp://www.irgrid.ac.cn/handle/1471x/2175990
Collection高能物理研究所
Corresponding AuthorAad, G.
Affiliation1.Univ Freiburg, Fak Math & Phys, D-79104 Freiburg, Germany
2.CERN, CH-1211 Geneva 23, Switzerland
3.SUNY Albany, Albany, NY 12222 USA
4.Univ Alberta, Dept Phys, Ctr Particle Phys, Edmonton, AB T6G 2G7, Canada
5.Ankara Univ, Fac Sci, Dept Phys, TR-061000 Ankara, Turkey
6.Univ Savoie, CNRS IN2P3, LAPP, Annecy Le Vieux, France
7.Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
8.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
9.Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA
10.Univ Athens, Dept Phys, GR-15771 Athens, Greece
Recommended Citation
GB/T 7714
Aad, G.,Abbott, B.,Abdallah, J.,et al. Drift time measurement in the atlas liquid argon electromagnetic calorimeter using cosmic muons[J]. European physical journal c,2010,70(3):755-785.
APA Aad, G..,Abbott, B..,Abdallah, J..,Abdelalim, A. A..,Abdesselam, A..,...&Hartjes, F..(2010).Drift time measurement in the atlas liquid argon electromagnetic calorimeter using cosmic muons.European physical journal c,70(3),755-785.
MLA Aad, G.,et al."Drift time measurement in the atlas liquid argon electromagnetic calorimeter using cosmic muons".European physical journal c 70.3(2010):755-785.

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