Measurement of the low-mass Drell-Yan differential cross section at √s = 7 TeV using the ATLAS detector
Name
Aad-2014-Measurement of the l.pdf
Size
877.79 KB
Format
Adobe PDF
Checksum (MD5)
eac812ef3c0e356dd0c6a0d5948c956a
Author(s)
Taylor, Frank E.
Date Issued
June 2014
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, et al. “Measurement of the Low-Mass Drell-Yan Differential Cross Section at √s = 7 TeV Using the ATLAS Detector.” J. High Energ. Phys. 2014, no. 6 (June 2014). © CERN, for the benefit of the ATLAS Collaboration
Version
Final published version
Abstract
The differential cross section for the process Z/γ [superscript ∗] → ℓℓ (ℓ = e, μ) as a function of dilepton invariant mass is measured in pp collisions at √s = 7 TeV at the LHC using the ATLAS detector. The measurement is performed in the e and μ channels for invariant masses between 26 GeV and 66 GeV using an integrated luminosity of 1.6 fb[superscript −1] collected in 2011 and these measurements are combined. The analysis is extended to invariant masses as low as 12 GeV in the muon channel using 35 pb[superscript −1] of data collected in 2010. The cross sections are determined within fiducial acceptance regions and corrections to extrapolate the measurements to the full kinematic range are provided. Next-to-next-to-leading-order QCD predictions provide a significantly better description of the results than next-to-leading-order QCD calculations, unless the latter are matched to a parton shower calculation.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP06(2014)112
