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Position resolution and particle identification with the ATLAS em calorimeter

  • J. Colas
  • , L. Di Ciaccio
  • , M. El Kacimi
  • , O. Gaumer
  • , M. Gouanère
  • , D. Goujdami
  • , R. Lafaye
  • , C. Le Maner
  • , L. Neukermans
  • , P. Perrodo
  • , L. Poggioli
  • , D. Prieur
  • , H. Przysiezniak
  • , G. Sauvage
  • , I. Wingerter-Seez
  • , R. Zitoun
  • , F. Lanni
  • , H. Ma
  • , S. Rajagopalan
  • , S. Rescia
  • H. Takai, A. Belymam, D. Benchekroun, M. Hakimi, A. Hoummada, E. Barberio, Y. S. Gao, L. Lu, R. Stroynowski, M. Aleksa, J. Beck Hansen, T. Carli, P. Fassnacht, F. Gianotti, L. Hervas, W. Lampl, B. Belhorma, J. Collot, M. L. Gallin-Martel, J. Y. Hostachy, F. Ledroit-Guillon, P. Martin, F. Ohlsson-Malek, S. Saboumazrag, S. Viret, M. Leltchouk, J. A. Parsons, M. Seman, F. Barreiro, J. Del Peso, L. Labarga, C. Oliver, S. Rodier, P. Barrillon, C. Benchouk, F. Djama, P. Y. Duval, F. Henry-Couannier, F. Hubaut, E. Monnier, P. Pralavorio, D. Sauvage, C. Serfon, S. Tisserant, J. Toth, D. Banfi, L. Carminati, D. Cavalli, G. Costa, M. Delmastro, M. Fanti, L. Mandelli, M. Mazzanti, G. F. Tartarelli, K. Kotov, A. Maslennikov, G. Pospelov, Yu Tikhonov, C. Bourdarios, C. De La Taille, L. Fayard, D. Fournier, L. Iconomidou-Fayard, M. Kado, M. Lechowski, G. Parrour, P. Puzo, D. Rousseau, R. Sacco, N. Seguin-Moreau, L. Serin, G. Unal, D. Zerwas, B. Dekhissi, J. Derkaoui, A. El Kharrim, F. Maaroufi, A. Camard, D. Lacour
  • Université Paris-Sud
  • Cadi Ayyad University
  • Brookhaven National Laboratory
  • Université Hassan II
  • Southern Methodist University
  • University of Melbourne
  • European Organization for Nuclear Research
  • Niels Bohr Institutet
  • Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
  • Nevis Laboratory
  • Columbia University
  • Physics Department
  • Universidad Autónoma de Madrid
  • Aix-Marseille Université
  • Wigner Research Centre for Physics
  • Dipartimento di Fisica
  • University of Milano
  • Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
  • Laboratoire de l'Accélérateur Linéaire
  • Queen Mary University of London
  • Laboratoire de Physique Theorique et de Physique des Particules
  • Université Mohamed Premier
  • Sorbonne Université

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

29 Citations (Scopus)

Résumé

In the years between 2000 and 2002 several pre-series and series modules of the ATLAS EM barrel and end-cap calorimeter were exposed to electron, photon and pion beams. The performance of the calorimeter with respect to its finely segmented first sampling has been studied. The polar angle resolution has been found to be in the range 50-60 (mrad)/E(GeV). The π0 rejection has been measured to be about 3.5 for 90% photon selection efficiency at pT=50GeV/c. e-π separation studies have indicated that a pion fake rate of (0.07-0.5)% can be achieved while maintaining 90% electron identification efficiency for energies up to 40 GeV.

langue originaleAnglais
Pages (de - à)96-115
Nombre de pages20
journalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume550
Numéro de publication1-2
Les DOIs
étatPublié - 11 sept. 2005
Modification externeOui

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