Improved luminosity determination in pp collisions at √s =7 TeV using the ATLAS detector at the LHC

The ATLAS Collaboration

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The luminosity calibration for the ATLAS detector at the LHC during pp collisions at √s = 7 TeV in 2010 and 2011 is presented. Evaluation of the luminosity scale is performed using several luminosity-sensitive detectors, and comparisons are made of the long-term stability and accuracy of this calibration applied to the pp collisions at √s = 7 TeV. A luminosity uncertainty of δL/L= ± 3.5 % is obtained for the 47 pb-1 of data delivered to ATLAS in 2010, and an uncertainty of δL/L= ± 1.8 % is obtained for the 5.5 fb-1 delivered in 2011.

Original languageEnglish
Article number2518
Pages (from-to)2-39
Number of pages38
JournalEuropean Physical Journal C
Issue number8
Publication statusPublished - 2013 Aug 14


ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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