4.7 Article

Performance of the ATLAS Trigger System in 2010

Journal

EUROPEAN PHYSICAL JOURNAL C
Volume 72, Issue 1, Pages -

Publisher

SPRINGER
DOI: 10.1140/epjc/s10052-011-1849-1

Keywords

-

Funding

  1. ANPCyT, Argentina
  2. YerPhI, Armenia
  3. ARC, Australia
  4. BMWF, Austria
  5. ANAS, Azerbaijan
  6. SSTC, Belarus
  7. CNPq, Brazil
  8. FAPESP, Brazil
  9. NSERC, Canada
  10. NRC, Canada
  11. CFI, Canada
  12. CERN
  13. CONICYT, Chile
  14. CAS, China
  15. MOST, China
  16. NSFC, China
  17. COLCIENCIAS, Colombia
  18. MSMT CR, Czech Republic
  19. MPO CR, Czech Republic
  20. VSC CR, Czech Republic
  21. DNRF, Denmark
  22. DNSRC, Denmark
  23. Lundbeck Foundation, Denmark
  24. ARTEMIS, European Union
  25. IN2P3-CNRS
  26. CEA-DSM/I RFU, France
  27. GNAS, Georgia
  28. BMBF, Germany
  29. DFG, Germany
  30. HGF, Germany
  31. MPG, Germany
  32. AvH Foundation, Germany
  33. GSRT, Greece
  34. ISF, Israel
  35. MINERVA, Israel
  36. GIF, Israel
  37. DIP, Israel
  38. Benoziyo Center, Israel
  39. INFN, Italy
  40. MEXT, Japan
  41. JSPS, Japan
  42. CNRST, Morocco
  43. FOM, Netherlands
  44. NWO, Netherlands
  45. RCN, Norway
  46. MNiSW, Poland
  47. GRICES, Portugal
  48. FCT, Portugal
  49. MERYS (MECTS), Romania
  50. MES of Russia
  51. ROSATOM, Russian Federation
  52. JINR
  53. MSTD, Serbia
  54. MSSR, Slovakia
  55. ARRS, Slovenia
  56. MVZT, Slovenia
  57. DST/NRF, South Africa
  58. MICINN, Spain
  59. SRC, Sweden
  60. Wallenberg Foundation, Sweden
  61. SER, Switzerland
  62. SNSF, Switzerland
  63. Cantons of Bern, Switzerland
  64. Geneva, Switzerland
  65. NSC, Taiwan
  66. TAEK, Turkey
  67. STFC
  68. Royal Society
  69. Leverhulme Trust, United Kingdom
  70. DOE
  71. NSF, United States of America
  72. Science and Technology Facilities Council [PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/H001093/1, ST/K001361/1, ST/K001337/1, ST/K001264/1 ATLAS, ST/I005803/1 GRIDPP, ST/K001248/1, ST/K001361/1 ATLAS, ST/I003525/1, ST/K001329/1 ATLAS, ST/I003142/1, ST/M001474/1, ST/I005803/1, ST/H001026/2, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/M001512/1, ST/M001431/1, PP/E003699/1, ST/J004928/1, ST/I006080/1, ST/K001337/1 ATLAS, PP/E003087/1, ST/I003517/1, ST/L001144/1, PP/E003699/2, GRIDPP, ST/K00073X/1, ST/J005576/1, ST/I000186/1, ST/G502320/1, ST/H001093/2, ST/J004944/1, ST/K001418/1, ATLAS, ST/J004928/1 ATLAS Upgrade, ST/K001361/1 LHCb, ST/J002798/1, ST/K001248/1 ATLAS, ST/K001361/1 ATLAS Upgrades, ST/F007337/1] Funding Source: researchfish
  73. STFC [ST/K001337/1, PP/E000347/1, ST/I003517/1, ST/L001144/1, ST/H001093/1, ST/H001026/1, ST/I003142/1, ST/M000753/1, ST/F007337/1, ST/J004944/1, PP/E003699/2, ST/J005576/1, ST/H001069/2, ST/K001361/1, ST/I003525/1, ST/I005803/1, ST/M001431/1, PP/E003087/1, ST/I000186/1, ST/J002798/1, ST/K001329/1, ST/H001093/2, ST/K001248/1, ST/K00073X/1, ST/M001512/1, PP/E003699/1, ST/H001026/2, ST/J004928/1, ST/G502320/1, ST/I006080/1] Funding Source: UKRI
  74. ICREA Funding Source: Custom

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Proton-proton collisions at root s = 7 TeV and heavy ion collisions at root(NN)-N-s = 2.76 TeV were produced by the LHC and recorded using the ATLAS experiment's trigger system in 2010. The LHC is designed with a maximum bunch crossing rate of 40 MHz and the ATLAS trigger system is designed to record approximately 200 of these per second. The trigger system selects events by rapidly identifying signatures of muon, electron, photon, tau lepton, jet, and B meson candidates, as well as using global event signatures, such as missing transverse energy. An overview of the ATLAS trigger system, the evolution of the system during 2010 and the performance of the trigger system components and selections based on the 2010 collision data are shown. A brief outline of plans for the trigger system in 2011 is presented.

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