Luminosity determination in pp collisions at $\sqrt{s} = 7$ TeV using the ATLAS detector at the LHC
By M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, Baptiste Abeloos, R. Aben, O. AbouZeid, N. Abraham, H. Abramowicz and 489 more. 2011
306 citations recorded by the source corpus.
Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at $\sqrt{s} = 7$ TeV are presented. The luminosity is independently determined using several detectors and multiple algorithms, each having different acceptances, systematic uncertainties and sensitivity to background. The ratios of the luminosities obtained from these methods are monitored as a function of time and of μ, the average number of inelastic interactions per bunch crossing. Residual time- and μ-dependence between the methods is less than 2% for 0<μ<2.5. Absolute luminosity calibrations, performed using beam separation scans, have a common systematic uncertainty of ±11%, dominated by the measurement of the LHC beam currents. After calibration, the luminosities obtained from the different methods differ by at most ±2%. The visible cross sections measured using the beam scans are compared to predictions obtained with the PYTHIA and PHOJET event generators and the ATLAS detector simulation.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/32bc8fb0acdb05bc4d9883eb673c666191e04b03
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In Nuclear and High Energy Physics
- Atlas Collaboration
- A. Boveia
- J. A. Aguilar-Saavedra
- L. Asquith
- S. Bethke
- Alan J. Barr
- M. Campanelli
- Philip Bechtle
Citations in the corpus
- Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector (2012, methodology): “Further experimental uncertainties that impact the background prediction, such as the jet energy scale (JES) and resolution (JER) [55], the trigger efficiency, and the luminosity measurement [36, 37], are minimised by this approach.”
- Jet energy scale measurements and their systematic uncertainties in proton-proton collisions at √s=13 TeV with the ATLAS detector (2017, unknown): “The mean number of interactions per bunch crossing was estimated through luminosity measurements [35] to be on average h μ i ¼ 13 .”