ArcAdiA

Study of the ATLAS MDT spectrometer using high energy CERN combined test beam data

2008-12-31T23:00:00Z

Study of the ATLAS MDT spectrometer using high energy CERN combined test beam data Adorisio, C.; Aielli, G.; Alexopoulos, Th.; Alviggi, M.; Amelung, C.; Anastopoulos, Ch.; Avolio, G.; Avramidou, R.; Bachas, K.; Bagnaia, P.; Ball, R.; Lacava, F.; Lancon, E.; Lanza, A.; Laporte, J. -F.; Lellouch, D.; Levin, D. S.; Levinson, L.; Liberti, B.; Lifshitz, R.; Linde, F.; Barisonzi, M.; Luci, C.; Lupu, N.; Maccarrone, G.; Maeno, T.; Mair, K.; Maltezos, S.; Manz, A.; Marchesotti, M.; Meoni, E.; Mikenberg, G.; Baroncelli, Antonio; Mohr, W.; Mohrdieck-Moeck, S.; Nagano, K.; Nicolaidou, R.; Nikolaev, K.; Nikolopoulos, K.; Nisati, A.; Nomoto, H.; Oliver, J.; Orestano, Domizia; Barone, M.; Osborne, L. S.; Ouraou, A.; Palestini, S.; Pasqualucci, E.; Passeri, Antonio; Pastore, F.; Patricelli, S.; Perrino, R.; Petridou, Ch.; Petrucci, Fabrizio; Bauer, F.; Podkladkin, S.; Policicchio, A.; Pomarede, D.; Ponsot, P.; Pontecorvo, L.; Primavera, M.; Rebuzzi, D.; Richter, R.; Rimoldi, A.; Rosati, S.; Bellomo, M.; Rothberg, J.; Sakamoto, H.; Salvatore, D.; Sampsonidis, D.; Santonico, R.; Sasaki, O.; Schricker, A.; Schuh, S.; Schune, P.; Shoa, M.; Benhammou, Y.; Skvorodnev, N.; Sliwa, K.; Camillocci, E. Solfaroli; Spagnolo, S.; Spogli, L.; Strauss, E.; Sugaya, Y.; Tanaka, S.; Tarem, S.; Taylor, F. E.; Bensinger, J.; Todorova, S.; Trigger, I.; Tsiafis, I.; Tsipolitis, G.; Valderanis, Ch.; Valente, P.; Vandelli, W.; van der Graaf, H.; Vari, R.; Veneziano, S.; Beretta, M.; Ventura, A.; Ventura, S.; Vermeulen, J.; Vlachos, S.; Vreeswijk, M.; Yasu, Y.; Wellenstein, H.; Werneke, P.; Wijnen, T.; Wolter, M.; Bianchi, Riccardo Maria; Wotschack, J.; Woudstra, M.; Zema, F.; Zhao, Z.; Zhemchugov, A.; Zhou, B.; Zimmerman, S.; Bianco, M.; Bini, C.; Bobbink, G.; Borisov, A.; Boterenbrood, H.; Boyko, I.; Branchini, Paolo; Brambilla, E.; Brandenburg, G.; Bratzler, U.; Bressler, S.; Brouwer, G.; Cambiaghi, M.; Canale, V.; Caprio, M.; Cardarelli, R.; Cerutti, F.; Chapman, J. W.; Chelkov, G.; Chevalier, L.; Chiodini, G.; Cirilli, M.; Coco, R.; Curatolo, M.; Dai, T.; De Asmundis, R.; Dedovich, D.; Della Pietra, M.; Della Volpe, D.; DeZorzi, G.; Di Ciaccio, A.; DiDomenico, A.; Di Luise, Silvestro; Di Simone, A.; Dris, M.; Dushkin, A.; Ernwein, J.; Esposito, B.; Etzion, E.; Fakhrutdinov, R.; Falciano, S.; Fassouliotis, D.; Ferrari, R.; Formica, A.; Fukunaga, C.; Gaudio, G.; Gazis, Ev.; Giraud, P. -F.; Gorini, E.; Grancagnolo, F.; Gregory, J. A.; Groenstege, H.; da Costa, J. Guimaraes; Guyot, C.; Harel, A.; Hart, R.; Hashemi, K.; Hassani, S.; Herten, G.; Horvat, S.; Hurst, P.; Ichimiya, R.; Lengo, P.; Ikeno, M.; Ioannou, P.; Iodice, Mauro; Ishino, M.; Iwasaki, H.; Kataoka, Y.; Khodinov, A.; Konig, A.; Kortner, O.; Kotov, S.; Kourkoumelis, C.; Kozhin, A.; Krepouri, A.; Kroha, H.; Krumshteyn, Z.; Kurashige, H.; Landgraf, U. 2009-01 Nuclear instruments & methods in physics research section A, Accelerators spectrometers, detectors and associated equipment 598 400-415 In 2004, a combined system test was performed in the H8 beam line atthe CERN SPS with a setup reproducing the geometry of sectors of theATLAS Muon Spectrometer, formed by three stations of Monitored DriftTubes (MDT). The full ATLAS analysis chain Was used to obtain theresults presented in this paper. The basic design performances of theWon Spectrometer were verified. The stability of MDT calibrationconstants, the alignment system using optical devices and high energytracks, as well as the intrinsic sagitta resolution of the MuonSpectrometer were studied and found to agree with expectations. Thereconstruction of muon tracks using the combined information from boththe Inner Detector and the Muon Spectrometer are also presented. (C)2008 Elsevier B.V. All rights reserved.

Expected Performance of the ATLAS Experiment: Detector, Trigger and Physics

2008-12-31T23:00:00Z

Expected Performance of the ATLAS Experiment: Detector, Trigger and Physics Aad, G.; Bacci, Cesare; Ceradini, Filippo; Di Luise, Silvestro; Diglio, Sara; Orestano, Domizia; Pastore, Fernanda; Petrucci, Fabrizio; Spogli, L.; et, al. 2009-01 The Large Hadron Collider (LHC) at CERN promises a major step forward in the understanding of the fundamental nature of matter. The ATLAS experiment is a general-purpose detector for the LHC, whose design was guided by the need to accommodate the wide spectrum of possible physics signatures. The major remit of the ATLAS experiment is the exploration of the TeV mass scale where ground breaking discoveries are expected. In the focus are the investigation of the electroweak symmetry breaking and linked to this the search for the Higgs boson as well as the search for Physics beyond the Standard Model. In this report a detailed examination of the expected performance of the ATLAS detector is provided, with a major aim being to investigate the experimental sensitivity to a wide range of measurements and potential observations of new physical processes. An earlier summary of the expected capabilities of ATLAS was compiled in 1999. Since that time, the design of the detector has been finalised, and construction and installation have been completed. An extensive test-beam programme was undertaken. Furthermore, the simulation and reconstruction software code and frameworks have been completely rewritten. Revisions incorporated reflect improved detector modelling as well as major technical changes to the software technology. Greatly improved understanding of calibration and alignment techniques, and their practical impact on performance, is now in place. The studies reported here are based on full simulations of the ATLAS detector response. A variety of event generators were employed. The simulation and reconstruction of these large event samples thus provided an important operational test of the new ATLAS software system. In addition, the processing was distributed world-wide over the ATLAS Grid facilities and hence provided an important test of the ATLAS computing system – this is the origin of the expression “CSC studies” (“computing system commissioning”), which is occasionally referred to in these volumes. This report is broadly divided into two parts: firstly the performance for identification of physics objects is examined in detail, followed by a detailed assessment of the performance of the trigger system. This part is subdivided into chapters surveying the capabilities for charged particle tracking, each of electron/photon, muon and tau identification, jet and missing transverse energy reconstruction, b-tagging algorithms and performance, and finally the trigger system performance. The second major subdivision of the report addresses physics measurement capabilities, and new physics search sensitivities. Individual chapters in this part discuss ATLAS physics capabilities in Standard Model QCD and electroweak processes, in the top quark sector, in b-physics, in searches for Higgs bosons, supersymmetry searches, and finally searches for other new particles predicted in more exotic models.

In-Situ Determination of the Performance of the Muon Spectrometer

2008-12-31T23:00:00Z

In-Situ Determination of the Performance of the Muon Spectrometer Diglio, Sara; Orestano, Domizia; Petrucci, Fabrizio; Spogli, Luca 2009 Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics 208-228 The ATLAS muon spectrometer consists of three layers of precision drift-tube chambers in a toroidal magnetic with a field integral between 2.5 and 6 Tm. Muon tracks are reconstructed with 97% efficiency and a momentum resolution between 3% and 4% for 10 GeV< pT <500 GeV and better than 10% for transverse momenta up to 1 TeV. In this note, the performance of a perfectly calibrated and aligned muon spectrometer will be reviewed and the impact of deteriorations of the magnetic field, the calibration and misalignment of the muon chambers on the performance will be discussed. The main part of the note describes how the performance of the muon spectrometer can be determined using dimuon decays of Z bosons and JPsi mesons

Standard Model Physics with ATLAS and CMS

2009-08-24T22:00:00Z

Standard Model Physics with ATLAS and CMS Petrucci, Fabrizio 2009-08-25

Study of the ATLAS MDT spectrometer using high energy CERN combined test beam data

2009-01-10T23:00:00Z

Study of the ATLAS MDT spectrometer using high energy CERN combined test beam data Adorisio, C.; Aielli, G.; Alexopoulos, Th.; Alviggi, M.; Amelung, C.; Anastopoulos, Ch.; Avolio, G.; Avramidou, R.; Bachas, K.; Bagnaia, P.; Ball, R.; Barisonzi, M.; Baroncelli, Antonio; Barone, M.; Bauer, F.; Bellomo, M.; Benhammou, Y.; Bensinger, J.; Beretta, M.; Bianchi, Riccardo Maria; Bianco, M.; Bini, C.; Bobbink, G.; Borisov, A.; Boterenbrood, H.; Boyko, I.; Branchini, Paolo; Brambilla, E.; Brandenburg, G.; Bratzler, U.; Bressler, S.; Brouwer, G.; Cambiaghi, M.; Canale, V.; Caprio, M.; Cardarelli, R.; Cerutti, F.; Chapman, J. W.; Chelkov, G.; Chevalier, L.; Chiodini, G.; Cirilli, M.; Coco, R.; Curatolo, M.; Dai, T.; De Asmundis, R.; Dedovich, D.; Della Pietra, M.; Della Volpe, D.; DeZorzi, G.; Di Ciaccio, A.; DiDomenico, A.; Di Luise, Silvestro; Di Simone, A.; Dris, M.; Dushkin, A.; Ernwein, J.; Esposito, B.; Etzion, E.; Fakhrutdinov, R.; Falciano, S.; Fassouliotis, D.; Ferrari, R.; Formica, A.; Fukunaga, C.; Gaudio, G.; Gazis, Ev.; Giraud, P. -F.; Gorini, E.; Grancagnolo, F.; Gregory, J. A.; Groenstege, H.; Guimaraes da Costa, J.; Guyot, C.; Harel, A.; Hart, R.; Hashemi, K.; Hassani, S.; Herten, G.; Horvat, S.; Hurst, P.; Ichimiya, R.; Lengo, P.; Ikeno, M.; Ioannou, P.; Iodice, Mauro; Ishino, M.; Iwasaki, H.; Kataoka, Y.; Khodinov, A.; Konig, A.; Kortner, O.; Kotov, S.; Kourkoumelis, C.; Kozhin, A.; Krepouri, A.; Kroha, H.; Krumshteyn, Z.; Kurashige, H.; Landgraf, U.; Lacava, F.; Lancon, E.; Lanza, A.; Laporte, J. -F.; Lellouch, D.; Levin, D. S.; Levinson, L.; Liberti, B.; Lifshitz, R.; Linde, F.; Luci, C.; Lupu, N.; Maccarrone, G.; Maeno, T.; Mair, K.; Maltezos, S.; Manz, A.; Marchesotti, M.; Meoni, E.; Mikenberg, G.; Mohr, W.; Mohrdieck-Moeck, S.; Nagano, K.; Nicolaidou, R.; Nikolaev, K.; Nikolopoulos, K.; Nisati, A.; Nomoto, H.; Oliver, J.; Orestano, Domizia; Osborne, L. S.; Ouraou, A.; Palestini, S.; Pasqualucci, E.; Passeri, Antonio; Pastore, F.; Patricelli, S.; Perrino, R.; Petridou, Ch.; Petrucci, Fabrizio; Podkladkin, S.; Policicchio, A.; Pomarede, D.; Ponsot, P.; Pontecorvo, L.; Primavera, M.; Rebuzzi, D.; Richter, R.; Rimoldi, A.; Rosati, S.; Rothberg, J.; Sakamoto, H.; Salvatore, D.; Sampsonidis, D.; Santonico, R.; Sasaki, O.; Schricker, A.; Schuh, S.; Schune, P.; Shoa, M.; Skvorodnev, N.; Sliwa, K.; Solfaroli Camillocci, E.; Spagnolo, S.; Spogli, Luca; Strauss, E.; Sugaya, Y.; Tanaka, S.; Tarem, S.; Taylor, F. E.; Todorova, S.; Trigger, I.; Tsiafis, I.; Tsipolitis, G.; Valderanis, Ch.; Valente, P.; Vandelli, W.; van der Graaf, H.; Vari, R.; Veneziano, S.; Ventura, A.; Ventura, S.; Vermeulen, J.; Vlachos, S.; Vreeswijk, M.; Yasu, Y.; Wellenstein, H.; Werneke, P.; Wijnen, T.; Wolter, M.; Wotschack, J.; Woudstra, M.; Zema, F.; Zhao, Z.; Zhemchugov, A.; Zhou, B.; Zimmerman, S. 2009-01-11 Nuclear Instruments & Methods in Physics Research. Section A 598 400-415 In 2004, a combined system test was performed in the H8 beam line at the CERN SPS with a setup reproducing the geometry of sectors of the ATLAS Muon Spectrometer, formed by three stations of Monitored DriftTubes (MDT). The full ATLAS analysis chain was used to obtain the results presented in this paper. The basic design performances of the Muon Spectrometer were verified. The stability of MDT calibration constants, the alignment system using optical devices and high energy tracks, as well as the intrinsic sagitta resolution of the Muon Spectrometer were studied and found to agree with expectations. The reconstruction of muon tracks using the combined information from both the Inner Detector and the Muon Spectrometer are also presented.