Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC
High Energy Physics - Experiment
2015-02-06 v2
Abstract
The luminosity calibration for the ATLAS detector at the LHC during pp collisions at sqrt(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 sqrt(s) = 7 TeV. A luminosity uncertainty of Delta L/L = +/- 3.5% is obtained for the 47 pb-1 of data delivered to ATLAS in 2010, and an uncertainty of Delta L/L = +/- 1.8% is obtained for the 5.5 fb-1 delivered in 2011.
Keywords
Cite
@article{arxiv.1302.4393,
title = {Improved luminosity determination in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector at the LHC},
author = {ATLAS Collaboration},
journal= {arXiv preprint arXiv:1302.4393},
year = {2015}
}
Comments
27 pages plus author list (40 pages total), 17 figures, 9 tables, submitted to EPJC, All figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/DAPR-2011-01/