Preprint/Report

PUBDB-2018-01534

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png NLO PDFs from the ABMP16 fit

Alekhin, S. (Corresponding author)Extern* ; Blümlein, J. (Corresponding author)DESY* ; Moch, S. (Corresponding author)Extern*

2018

This record in other databases:    

Please use a persistent id in citations: doi:10.3204/PUBDB-2018-01534

Report No.: DESY-18-026; DO-TH 17/28; arXiv:1803.07537

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.

Note: 12 pages pdflatex, 4 figures, 5 tables

---

Contributing Institute(s):

1. Theorie (ZEU-THEO)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2018

---

Database coverage:
; Published

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Report/Journal Article Alekhin, S. ; Blümlein, J.DESY* ; Moch, S.-O. (Corresponding author)Extern*
NLO PDFs from the ABMP16 fi
The European physical journal / C 78(6), 477 (2018) [10.1140/epjc/s10052-018-5947-1]2018     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---