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Constraining parton distribution functions from neutral current Drell-Yan measurements

E. Accomando1,2,*, J. Fiaschi1,2,3,†, F. Hautmann2,4,5,‡, and S. Moretti1,2,§

  • 1School of Physics & Astronomy, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
  • 2Particle Physics Department, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
  • 3Institut für Theoretische Physik, Universität Münster, D 48149 Münster, Germany
  • 4Elementaire Deeltjes Fysica, Universiteit Antwerpen, B 2020 Antwerpen, Belgium
  • 5Theoretical Physics Department, University of Oxford, Oxford OX1 3NP, United Kingdom

  • *e.accomando@soton.ac.uk
  • †juri.fiaschi@soton.ac.uk
  • ‡hautmann@thphys.ox.ac.uk
  • §s.moretti@soton.ac.uk
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Phys. Rev. D 98, 013003 – Published 13 July, 2018Erratum Phys. Rev. D 99, 079902 (2019)

DOI: https://doi.org/10.1103/PhysRevD.98.013003

Abstract

We study the cross section σ and forward-backward asymmetry (AFB) in the process pp→γ*,Z→ℓ+ℓ− (with ℓ=e, μ) for determinations of parton distribution functions (PDFs) of the proton. We show that, once mapped in the invariant mass of the dilepton final state, M(ℓℓ), both observables, σ and AFB, display a statistical error which is presently competitive with that assigned to the existing PDF sets and which will rapidly become smaller than the latter as the luminosity being accumulated at Run-II of the LHC grows. This statement is applicable to both on-peak and off-peak M(ℓℓ) regions, both (just) below and above it, thereby offering a means of constraining the quark PDFs over a sizable (x,Q2) range.

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Erratum

Erratum: Constraining parton distribution functions from neutral current Drell-Yan measurements [Phys. Rev. D 98, 013003 (2018)]

E. Accomando, J. Fiaschi, F. Hautmann, and S. Moretti
Phys. Rev. D 99, 079902 (2019)

Article Text

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Phys. Rev. D 98, 013003– Published 13 July, 2018
  • Received 1 May 2018
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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