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@ARTICLE{Alekhin:632668,
author = {Alekhin, S. and Garzelli, M. V. and Moch, S.-O. and
Zenaiev, O.},
title = {{NNLO} {PDF}s driven by top-quark data},
journal = {The European physical journal / C},
volume = {85},
number = {2},
issn = {1434-6044},
address = {Heidelberg},
publisher = {Springer},
reportid = {PUBDB-2025-02217, arXiv:2407.00545. DESY-24-092},
pages = {162},
year = {2025},
note = {Eur. Phys. J. C 85 (2025) 162, 1 - 25. 33 pages, 22
figures, 4 tables, interpolation tables for top-antitop
production available at https://ploughshare.web.cern.ch v2:
minor revision accounting for the comments of the Referee,
to be published in EPJC},
abstract = {We study the impact of state-of-the-art top-quark data
collected at the large hadron collider on parton
distribution functions (PDFs). Following the ABMP
methodology, the fit extracts simultaneously proton PDFs,
the strong coupling $\alpha _s(M_Z)$ and heavy-quark masses
at next-to-next-to-leading order (NNLO) accuracy in QCD. It
includes recent high-statistics data on absolute total
inclusive cross sections for $t\bar{t}+X$, the sum of $(t +
X)$ and $(\bar{t} + X)$ hadroproduction, and normalized
inclusive data double-differential in the invariant mass and
rapidity of the $t\bar{t}$ pair at $\sqrt{S}=13$ TeV. The
gluon PDF at large x and the top-quark mass value derived
from these data are well compatible with the previous ABMP16
results, but with significantly smaller uncertainties,
reduced by up to a factor of two. At NNLO in QCD we obtain
for the strong coupling the value $\alpha _s^{(n_f=5)}(M_Z)=
0.1150 \pm 0.0009$ and for the top-quark mass in the
${\overline{\text{ MS }}}$-scheme $m_t(m_t) = 160.6 \pm 0.6$
GeV, corresponding to $m_t^\textrm{pole} = 170.2 \pm 0.7$
GeV in the on-shell scheme. The new fit, dubbed ABMPtt, is
publicly released in grids in LHAPDF format.},
cin = {UNI/TH},
ddc = {530},
cid = {$I:(DE-H253)UNI_TH-20120731$},
pnm = {611 - Fundamental Particles and Forces (POF4-611) / DFG
project G:(GEPRIS)409651613 - FOR 2926: Next Generation
Perturbative QCD for Hadron Structure: Preparing for the
Electron-Ion Collider (409651613) / 05H21GUCCA -
Verbundprojekt 05H2021 (ErUM-FSP T03) - Run 3 von CMS am
LHC: Präzisionsbestimmung von Partondichtefunktionen und
Top-Quark-Masse (BMBF-05H21GUCCA)},
pid = {G:(DE-HGF)POF4-611 / G:(GEPRIS)409651613 /
G:(DE-Ds200)BMBF-05H21GUCCA},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
eprint = {2407.00545},
howpublished = {arXiv:2407.00545},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2407.00545;\%\%$},
doi = {10.1140/epjc/s10052-025-13832-8},
url = {https://bib-pubdb1.desy.de/record/632668},
}