Combined electroweak and QCD fit to HERA data

I. Abt, A. M. Cooper-Sarkar, B. Foster, C. Gwenlan, V. Myronenko, O. Turkot, and K. Wichmann
Phys. Rev. D 94, 052007 – Published 15 September 2016

Abstract

A simultaneous electroweak and QCD fit of electroweak parameters and parton distribution functions to HERA data on deep inelastic scattering is presented. The input data are neutral current and charged current inclusive cross sections measured by the H1 and ZEUS collaborations at the ep collider HERA. The polarization of the electron beam was taken into account for the ZEUS and H1 data recorded between 2004 and 2007. Results are presented on the vector and axial-vector couplings of the Z boson to u- and d-type quarks. The values are in agreement with Standard Model predictions. The results on au and vu represent the most precise measurements from a single process.

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  • Received 19 April 2016

DOI:https://doi.org/10.1103/PhysRevD.94.052007

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

I. Abt1, A. M. Cooper-Sarkar2, B. Foster2,3,4, C. Gwenlan2, V. Myronenko4, O. Turkot4, and K. Wichmann4

  • 1Max-Planck-Institut für Physik, Werner-Heisenberg-Institut, 80805 München, Germany
  • 2Physics Department, University of Oxford, Oxford, OX1 3RH United Kingdom
  • 3Hamburg University, I. Institute of Experimental Physics, 22671 Hamburg, Germany
  • 4Deutsches Elektronen Synchrotron DESY, 22671 Hamburg, Germany

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Issue

Vol. 94, Iss. 5 — 1 September 2016

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