pith. sign in

arxiv: 1803.07537 · v2 · pith:24DISZKKnew · submitted 2018-03-20 · ✦ hep-ph

NLO PDFs from the ABMP16 fit

classification ✦ hep-ph
keywords alphapdfsabmp16massesnnloorderquarkscheme
0
0 comments X p. Extension
pith:24DISZKK Add to your LaTeX paper What is a Pith Number?
\usepackage{pith}
\pithnumber{24DISZKK}

Prints a linked pith:24DISZKK badge after your title and writes the identifier into PDF metadata. Compiles on arXiv with no extra files. Learn more

read the original abstract

We perform a global fit of parton distribution functions (PDFs) together with the strong coupling constant $\alpha_s$ and the quark masses $m_c$, $m_b$ and $m_t$ at next-to-leading order (NLO) in QCD. The analysis applies the $\overline{\mathrm{MS}}\, $ renormalization scheme for $\alpha_s$ and all quark masses. It is performed in the fixed-flavor number scheme for $n_f=3, 4, 5$ and uses the same data as the previous fit of the ABMP16 PDF at next-to-next-to-leading order (NNLO). The new NLO PDFs complement the set of ABMP16 PDFs and are to be used consistently with NLO QCD predictions for hard scattering processes. At NLO we obtain the value $\alpha_s^{(n_f=5)}(M_Z) = 0.1191 \pm 0.0011$ compared to $\alpha_s^{(n_f=5)}(M_Z) = 0.1147 \pm 0.0008$ at NNLO.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Redetermination of proton sea distributions

    hep-ph 2026-05 unverdicted novelty 3.0

    NNLO global fits to HERA and ATLAS data yield an asymmetric proton sea with ubar exceeding dbar at moderate x and a revised Gottfried sum rule value.