The ATLAS Inner Detector commissioning and calibration
Makaleler > Tam Makale · 2010
Yazarlar: G. Aad, B. Abbott, J. Abdallah, A. A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, M. Abolins, H. Abramowicz, H. Abreu, B. S. Acharya, D. L. Adams, T. N. Addy, J. Adelman, C. Adorisio, P. Adragna, T. Adye, S. Aefsky, J. A. Aguilar-Saavedra, M. Aharrouche, S. P. Ahlen, F. Ahles, A. Ahmad, M. Ahsan, G. Aielli, T. Akdogan, T. P. A. Akesson, G. Akimoto, A. V. Akimov, A. Aktas, M. S. Alam, M. A. Alam, S. Albrand, M. Aleksa, I. N. Aleksandrov, C. Alexa, G. Alexander, G. Alexandre, T. Alexopoulos, M. Alhroob, M. Aliev, G. Alimonti, J. Alison, M. Aliyev, P. P. Allport, S. E. Allwood-Spiers, J. Almond, A. Aloisio, R. Alon, A. Alonso, M. G. Alviggi, K. Amako, C. Amelung, A. Amorim, G. Amoros, N. Amram, C. Anastopoulos, T. Andeen, C. F. Anders, K. J. Anderson, A. Andreazza, V. Andrei, X. S. Anduaga, A. Angerami, F. Anghinolfi, N. Anjos, A. Annovi, A. Antonaki, M. Antonelli, S. Antonelli, J. Antos, B. Antunovic, E. Anulli, S. Aoun, G. Arabidze, I. Aracena, Y. Arai, A. T. H. Arce, J. P. Archambault, S. Arfaoui, J. -F. Arguin, T. Argyropoulos, M. Arik, A. J. Armbruster, O. Arnaez, C. Arnault, A. Artamonov, D. Arutinov, M. Asai, S. Asai, R. Asfandiyarov, S. Ask, B. Asman, D. Asner, L. Asquith, K. Assamagan, A. Astvatsatourov, G. Atoian, B. Auerbach, K. Augsten, E. Banas, D. Benchekroun, S. Bentvelsen, A. Bogouch, W. K. Brooks, L. Bugge, L. P. Caloba, M. L. Chu, Rena ÇİFTÇİ, V. Cindro, M. Dam, B. Epp, H. Hakobyan, J. S. H. Lee, M. Losada
EUROPEAN PHYSICAL JOURNAL C, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2010, cilt 70
DOI: 10.1140/epjc/s10052-010-1366-7
Özet
The ATLAS Inner Detector is a composite tracking system consisting of silicon pixels, silicon strips and straw tubes in a 2 T magnetic field. Its installation was completed in August 2008 and the detector took part in data-taking with single LHC beams and cosmic rays. The initial detector operation, hardware commissioning and insitu calibrations are described. Tracking performance has been measured with 7.6 million cosmic-ray events, collected using a tracking trigger and reconstructed with modular pattern-recognition and fitting software. The intrinsic hit efficiency and tracking trigger efficiencies are close to 100%. Lorentz angle measurements for both electrons and holes, specific energy-loss calibration and transition radiation turn-on measurements have been performed. Different alignment techniques have been used to reconstruct the detector geometry. After the initial alignment, a transverse impact parameter resolution of 22.1 +/- 0.9 mu m and a relative momentum resolution sigma(p)/p = (4.83 +/- 0.16) x 10(-4) GeV-1 x p(T) have been measured for high momentum tracks.