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Event reconstruction algorithms for the ATLAS trigger

  • T. Fonseca-Martin*
  • , M. Abolins
  • , P. Adragna
  • , E. Aleksandrov
  • , I. Aleksandrov
  • , A. Amorim
  • , K. Anderson
  • , X. Anduaga
  • , I. Aracena
  • , L. Asquith
  • , G. Avolio
  • , S. Backlund
  • , E. Badescu
  • , J. Baines
  • , P. Barria
  • , R. Bartoldus
  • , S. Batreanu
  • , P. Beck
  • , C. Bee
  • , P. Bell
  • H. Bell, M. Bellomo, K. Benslama, D. Berge, N. Berger, T. Berry, M. Biglietti, R. Blair, A. Bogaerts, T. Bold, M. Bosman, J. Boyd, B. Brelier, D. Burckhart, C. Buttar, M. Campanelli, M. Caprini, G. Carlino, D. Casadei, P. Casado, G. Cataldi, D. Cimino, M. Ciobotaru, D. Clements, A. Coccaro, P. Coura Torres, F. Conventi, A. Corso-Radu, J. Costa, R. Coura, R. Cranfield, K. Cranmer, G. Crone, M. Dam, D. Damazio, I. Dawson, J. Dawson, J. De Almeida Simoes, S. De Cecco, A. De Santo, M. DellaPietra, P. A. Delsart, S. Demers, B. Demirkoz, A. Di Mattia, C. Dionisi, R. Djilkibaev, R. Dobinson, M. Dobson, A. Dotti, M. Dova, G. Drake, M. A. Dufour, S. Eckweiler, W. Ehrenfeld, T. Eifert, N. Ellis, D. Emeliyanov, D. Enoque Ferreira De Lima, Y. Ermoline, I. Eschrich, K. Facius, S. Falciano, P. Farthouat, E. Feng, J. Ferland, R. Ferrari, L. Ferrer, G. Fischer, D. Francis, S. Gadomski, H. Garitaonandia, G. Gaudio, O. Gaumer, S. George, S. Giagu, R. Goncalo, B. Gorini, E. Gorini, S. Gowdy, I. Grabowska, S. Grancagnolo, B. Green, S. Haas, W. Haberichter, H. Hadavand, C. Haeberli, J. Haller, A. Hamilton, R. Hansen, M. Hauschild, R. Hauser, S. Head, S. Hillier, A. Hoecker, T. Hryn'Ova, R. Hughes, J. Huston, J. Idarraga, O. Igonkina, M. Inada, V. Jain, K. Johns, M. Joos, S. Kama, N. Kanaya, A. Kazarov, R. Kehoe, G. Khoriauli, G. Kieft, G. Kilvington, J. Kirk, H. Kiyamura, S. Kolos, T. Kono, N. Konstantinidis, K. Korcyl, K. Kordas, V. Kotov, A. Krasznahorkay, T. Kubota, A. Kugel, D. Kuhn, H. Kurasige, T. Kuwabara, R. Kwee, A. Lankford, T. Lecompte, L. Leahu, M. Leahu, F. Ledroit, G. Lehmann, X. Lei, D. Lellouch, M. Leyton, S. Li, H. Lim, T. Lohse, M. Losada, C. Luci, L. Luminari, L. Mapelli, B. Martin, T. Martin, F. Marzano, J. Masik, T. McMahon, R. McPherson, M. Medinnis, C. Meessen, C. Meirosu, A. Messina, A. Mincer, M. Mineev, A. Misiejuk, K. Moenig, F. Monticelli, A. Moraes, D. Moreno, P. Morettini, R. Murillo, K. Nagano, Y. Nagasaka, A. Negri, P. Nemethy, A. Neusiedl, A. Nisati, M. Nozicka, C. Omachi, B. Osculati, C. Osuna, C. Padilla, N. Panikashvili, F. Parodi, E. Pasqualucci, T. Pauly, V. Perera, E. Perez, V. Perez Reale, J. Petersen, R. Piegaia, J. Pilcher, G. Pinzon, B. Pope, C. Potter, M. Primavera, V. Radescu, S. Rajagopalan, P. Renkel, M. Rescigno, S. Rieke, C. Risler, I. Riu, S. Robertson, C. Roda, D. Rodriguez, Y. Rogriquez, Y. Ryabov, P. Ryan, D. Salvatore, C. Santamarina, C. Santamarina, D. Scannicchio, A. Scannicchio, C. Schiavi, J. Schlereth, I. Scholtes, D. Schooltz, W. Scott, E. Segura, N. Shimbo, A. Sidoti, G. Siragusa, S. Sivoklokov, E. Sloper, M. Smizanska, I. Soloviev, R. Soluk, S. Spagnolo, R. Spiwoks, S. Stancu, P. Steinberg, J. Stelzer, A. Stradling, D. Strom, J. Strong, D. Su, S. Sushkov, M. Sutton, T. Szymocha, S. Tapprogge, S. Tarem, Z. Tarem, P. Teixeira, K. Tokoshuku, E. Torrence, F. Touchard, L. Tremblet, M. Tripiana, G. Usai, B. Vachon, W. Vandelli, A. Ventura, V. Vercesi, J. Vermeulen, J. Von Der Schmitt, M. Wang, A. Watson, T. Wengler, P. Werner, S. Wheeler, F. Wickens, W. Wiedenmann, M. Wielersm, H. Wilkens, F. Winklmeier, E. E. Woehrling, S. L. Wu, X. Wu, S. Xella, Y. Yamazaki, M. Yu, F. Zema, J. Zhang, L. Zhao, H. Zobernig, A. Dos Anjos, M. Zur Nedden, E. Zcan, G. Nel
*Corresponding author for this work
  • CERN
  • Michigan State University
  • King's College London
  • Joint Institute for Nuclear Research
  • Laboratorio de Instrumentacao e Fisica Experimental
  • The University of Chicago
  • Universidad Nacional de La Plata
  • SLAC National Accelerator Laboratory
  • University College London
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • Rutherford Appleton Laboratory
  • University of Rome La Sapienza
  • University of Bern
  • L'Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
  • University of Manchester
  • University of Glasgow
  • National Institute for Nuclear Physics
  • University of Regina
  • Institut National de Physique Nucleaire et de Physique des Particules
  • Royal Holloway University of London
  • University of Naples Federico II
  • Argonne National Laboratory
  • University of California at Irvine
  • Autonomous University of Barcelona
  • University of Montreal
  • New York University
  • University of Pisa
  • University of Genoa
  • University of Valencia
  • Universidade Federal do Rio de Janeiro
  • University of Copenhagen
  • Brookhaven National Laboratory
  • University of Sheffield
  • NOVA University Lisbon
  • McGill University
  • Johannes Gutenberg University Mainz
  • German Electron Synchrotron
  • University of Geneva
  • I.N.F.N. Roma
  • Humboldt University of Berlin
  • University of Salento
  • Southern Methodist University
  • University of Hamburg
  • University of Birmingham
  • University of Oregon
  • Kobe University
  • Indiana University Bloomington
  • University of Arizona
  • RAS - Saint Petersburg Nuclear Physics Institute
  • University of Amsterdam
  • Polish Academy of Sciences
  • University of Debrecen
  • The University of Tokyo
  • University of Mannheim
  • University of Innsbruck
  • Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
  • Weizmann Institute of Science
  • University of California at Berkeley
  • Universidad Antonio Nariño
  • University of Victoria BC
  • High Energy Accelerator Research Organization, Tsukuba
  • Hiroshima Institute of Technology
  • Technion-Israel Institute of Technology
  • Universidad de Buenos Aires
  • University of Calabria
  • Lomonosov Moscow State University
  • Lancaster University
  • University of Alberta
  • University of Wisconsin-Madison
  • Max Planck Institute for Physics (Werner Heisenberg Institute)

Research output: Contribution to journalArticlepeer-review

Abstract

The ATLAS experiment under construction at CERN is due to begin operation at the end of 2007. The detector will record the results of proton-proton collisions at a center-of-mass energy of 14 TeV. The trigger is a three-tier system designed to identify in real-time potentially interesting events that are then saved for detailed offline analysis. The trigger system will select approximately 200 Hz of potentially interesting events out of the 40 MHz bunch-crossing rate (with 109 interactions per second at the nominal luminosity). Algorithms used in the trigger system to identify different event features of interest will be described, as well as their expected performance in terms of selection efficiency, background rejection and computation time per event. The talk will concentrate on recent improvements and on performance studies, using a very detailed simulation of the ATLAS detector and electronics chain that emulates the raw data as it will appear at the input to the trigger system.

Original languageEnglish
Pages (from-to)22022
Number of pages1
JournalJournal of Physics: Conference Series
Volume119
Issue number2
DOIs
Publication statusPublished - 1 Jul 2008
Externally publishedYes

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