Parton distribution functions and benchmark cross sections at next-to-next-to-leading order

S. Alekhin, J. Blümlein, and S. Moch
Phys. Rev. D 86, 054009 – Published 10 September 2012

Abstract

We present a determination of parton distribution functions (ABM11) and the strong coupling constant αs at next-to-leading order and next-to-next-to-leading order (NNLO) in QCD based on world data for deep-inelastic scattering and fixed-target data for the Drell-Yan process. The analysis is performed in the fixed-flavor number scheme for nf=3, 4, 5 and uses the MS¯ scheme for αs and the heavy-quark masses. At NNLO we obtain the value αs(MZ)=0.1134±0.0011. The fit results are used to compute benchmark cross sections at hadron colliders to NNLO accuracy and to compare to data from the LHC.

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  • Received 22 February 2012

DOI:https://doi.org/10.1103/PhysRevD.86.054009

© 2012 American Physical Society

Authors & Affiliations

S. Alekhin1,2,*, J. Blümlein1,†, and S. Moch1,‡

  • 1Deutsches Elektronensynchrotron DESY, Platanenallee 6, D-15738 Zeuthen, Germany
  • 2Institute for High Energy Physics, 142281 Protvino, Moscow region, Russia

  • *sergey.alekhin@ihep.ru
  • johannes.bluemlein@desy.de
  • sven-olaf.moch@desy.de

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Vol. 86, Iss. 5 — 1 September 2012

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