Scholars@Duke publication: Luminosity determination in pp collisions at √s = 7 TeV using the ATLAS detector at the LHC

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

Publication , Journal Article

Aad, D; Abbott, B; Abdallah, J; Abdelalim, AA; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Abreu, H; Acerbi, E; Acharya, BS ...

Published in: European Physical Journal C

April 1, 2011

Measurements of luminosity obtained using the ATLAS detector during early running of the Large Hadron Collider (LHC) at √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. © CERN for the benefit of the ATLAS collaboration 2011.

Duke Scholars

Author Ayana T. Arce Physics

Author Seog Oh Physics

Published In

European Physical Journal C

EISSN

1434-6052

ISSN

1434-6044

Publication Date

April 1, 2011

Volume

Issue

Start / End Page

1 / 37

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5102 Atomic, molecular and optical physics
5101 Astronomical sciences
0206 Quantum Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics

Citation

APA

Chicago

ICMJE

MLA

NLM

Aad, D., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., Abdinov, O., … Artoni, G. (2011). Luminosity determination in pp collisions at √s = 7 TeV using the ATLAS detector at the LHC. European Physical Journal C, 71(4), 1–37.

Aad, D., B. Abbott, J. Abdallah, A. A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Luminosity determination in pp collisions at √s = 7 TeV using the ATLAS detector at the LHC.” European Physical Journal C 71, no. 4 (April 1, 2011): 1–37.

Aad D, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, et al. Luminosity determination in pp collisions at √s = 7 TeV using the ATLAS detector at the LHC. European Physical Journal C. 2011 Apr 1;71(4):1–37.

Aad, D., et al. “Luminosity determination in pp collisions at √s = 7 TeV using the ATLAS detector at the LHC.” European Physical Journal C, vol. 71, no. 4, Apr. 2011, pp. 1–37.

Aad D, Abbott B, Abdallah J, Abdelalim AA, Abdesselam A, Abdinov O, Abi B, Abolins M, Abramowicz H, Abreu H, Acerbi E, Acharya BS, Ackers M, Adams DL, Addy TN, Adelman J, Aderholz M, Adomeit S, Adragna P, Adye T, Aefsky S, Aguilar-Saavedra JA, Aharrouche M, Ahlen SP, Ahles F, Ahmad A, Ahmed H, Ahsan M, Aielli G, Akdogan T, Akesson TPA, Akimoto G, Akimov AV, Alam MS, Alam MA, Albrand S, Aleksa M, Aleksandrov N, Aleppo M, Alessandria F, Alexa C, Alexander G, Alexandre G, Alexopoulos T, Alhroob M, Aliev M, Alimonti G, Alison J, Aliyev M, Allport PP, Allwood-Spiers SE, Almond J, Aloisio A, Alon R, Alonso A, Alonso J, Alviggi MG, Amako K, Amaral P, Amelung C, Ammosov VV, Amorim A, Amoros G, Amram N, Anastopoulos C, Andeen T, Anders CF, Anderson KJ, Andreazza A, Andrei V, Andrieux ML, Anduaga XS, Angerami A, Anghinolfi F, Anjos N, Annovi A, Antonaki A, Antonelli M, Antonelli S, Antos J, Anulli F, Aoun S, Aperio Bella L, Apolle R, Arabidze G, Aracena I, Arai Y, Arce ATH, Archambault JP, Arfaoui S, Arguin JF, Arik E, Arik M, Armbruster AJ, Arms KE, Armstrong SR, Arnaez O, Arnault C, Artamonov A, Artoni G. Luminosity determination in pp collisions at √s = 7 TeV using the ATLAS detector at the LHC. European Physical Journal C. 2011 Apr 1;71(4):1–37.

Published In

European Physical Journal C

EISSN

1434-6052

ISSN

1434-6044

Publication Date

April 1, 2011

Volume

Issue

Start / End Page

1 / 37

Related Subject Headings

Nuclear & Particles Physics
5107 Particle and high energy physics
5102 Atomic, molecular and optical physics
5101 Astronomical sciences
0206 Quantum Physics
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics