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

Publication ,  Journal Article
The ATLAS Collaboration, ; Aad, G; Abbott, B; Abdallah, J; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Adye, T ...
Published in: European Physical Journal C
December 1, 2010

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 (0.290.040.05)% in the barrel and (0.540.040.06)% 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/μs at 88.5 K and 1 kV/mm. © 2010 CERN for the benefit of the ATLAS collaboration.

Duke Scholars

Published In

European Physical Journal C

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

December 1, 2010

Volume

70

Issue

3

Start / End Page

755 / 785

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

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The ATLAS Collaboration, ., Aad, G., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., … Asquith, L. (2010). Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons. European Physical Journal C, 70(3), 755–785. https://doi.org/10.1140/epjc/s10052-010-1403-6
The ATLAS Collaboration, V., G. Aad, B. Abbott, J. Abdallah, A. A. Abdelalim, A. Abdesselam, O. Abdinov, et al. “Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons.” European Physical Journal C 70, no. 3 (December 1, 2010): 755–85. https://doi.org/10.1140/epjc/s10052-010-1403-6.
The ATLAS Collaboration, Aad G, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, et al. Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons. European Physical Journal C. 2010 Dec 1;70(3):755–85.
The ATLAS Collaboration, V., et al. “Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons.” European Physical Journal C, vol. 70, no. 3, Dec. 2010, pp. 755–85. Scopus, doi:10.1140/epjc/s10052-010-1403-6.
The ATLAS Collaboration, Aad G, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, Abi B, Abolins M, Abramowicz H, Abreu H, Acharya BS, Adams DL, Addy TN, Adelman J, Adorisio C, Adragna P, Adye T, Aefsky S, Aguilar-Saavedra JA, Aharrouche M, Ahlen SP, Ahles F, Ahmad A, Ahmed H, Ahsan M, Aielli G, Akdogan T, Åkesson TPA, Akimoto G, Akimov AV, Aktas A, Alam MS, Alam MA, Albert J, Albrand S, Aleksa M, Aleksandrov IN, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Aliyev M, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alviggi MG, Amako K, Amelung C, Ammosov VV, Amorim A, Amorós G, Amram N, Anastopoulos C, Andeen T, Anders CF, Anderson KJ, Andreazza A, Andrei V, Anduaga XS, Angerami A, Anghinolfi F, Anjos N, Antonaki A, Antonelli M, Antonelli S, Antos J, Antunovic B, Anulli F, Aoun S, Arabidze G, Aracena I, Arai Y, Arce ATH, Archambault JP, Arfaoui S, Arguin JF, Argyropoulos T, Arik E, Arik M, Armbruster AJ, Arnaez O, Arnault C, Artamonov A, Arutinov D, Asai M, Asai S, Asfandiyarov R, Ask S, Åsman B, Asner D, Asquith L. Drift Time Measurement in the ATLAS Liquid Argon Electromagnetic Calorimeter using Cosmic Muons. European Physical Journal C. 2010 Dec 1;70(3):755–785.
Journal cover image

Published In

European Physical Journal C

DOI

EISSN

1434-6052

ISSN

1434-6044

Publication Date

December 1, 2010

Volume

70

Issue

3

Start / End Page

755 / 785

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics