Approximate NLO parton distribution functions with theoretical uncertainties: MSHT20aNLO PDFs

J McGowan, T Cridge, LA Harland-Lang… - The European Physical …, 2023 - Springer
We present the first global analysis of parton distribution functions (PDFs) at approximate N
3 LO in the strong coupling constant α s, extending beyond the current highest NNLO …

Determination of the theory uncertainties from missing higher orders on NNLO parton distributions with percent accuracy

RD Ball, A Barontini, A Candido, S Carrazza… - The European Physical …, 2024 - Springer
We include uncertainties due to missing higher order corrections to QCD computations
(MHOU) used in the determination of parton distributions (PDFs) in the recent NNPDF4. 0 …

EPS09—a new generation of NLO and LO nuclear parton distribution functions

KJ Eskola, H Paukkunen… - Journal of High Energy …, 2009 - iopscience.iop.org
We present a next-to-leading order (NLO) global DGLAP analysis of nuclear parton
distribution functions (nPDFs) and their uncertainties. Carrying out an NLO nPDF analysis …

A first determination of parton distributions with theoretical uncertainties

R Abdul Khalek, RD Ball, S Carrazza, S Forte… - The European Physical …, 2019 - Springer
The parton distribution functions (PDFs) which characterize the structure of the proton are
currently one of the dominant sources of uncertainty in the predictions for most processes …

Parton distributions with theory uncertainties: general formalism and first phenomenological studies: NNPDF Collaboration

R Abdul Khalek, RD Ball, S Carrazza, S Forte… - The European Physical …, 2019 - Springer
We formulate a general approach to the inclusion of theoretical uncertainties, specifically
those related to the missing higher order uncertainty (MHOU), in the determination of parton …

Uncertainties on α S in global PDF analyses and implications for predicted hadronic cross sections

AD Martin, WJ Stirling, RS Thorne, G Watt - The European Physical …, 2009 - Springer
We determine the uncertainty on the strong coupling α S due to the experimental errors on
the data fitted in global analysis of hard-scattering data, within the standard framework of …

Precision determination of the strong coupling constant within a global PDF analysis: NNPDF Collaboration

RD Ball, S Carrazza, LD Debbio, S Forte… - The European Physical …, 2018 - Springer
We present a determination of the strong coupling constant α _s (m_Z) α s (m Z) based on
the NNPDF3. 1 determination of parton distributions, which for the first time includes …

NLO PDFs from the ABMP16 fit

S Alekhin, J Blümlein, S Moch - The European Physical Journal C, 2018 - Springer
We perform a global fit of parton distribution functions (PDFs) together with the strong
coupling constant α _s α s and the quark masses m_c mc, m_b mb and m_t mt at next-to …

NLO+ NLL squark and gluino production cross sections with threshold-improved parton distributions

W Beenakker, C Borschensky, M Krämer… - The European Physical …, 2016 - Springer
We present updated predictions for the cross sections for pair production of squarks and
gluinos at the LHC Run II. First of all, we update the calculations based on NLO+ NLL …

Towards parton distribution functions with small-x resummation: HELL 2.0

M Bonvini, S Marzani, C Muselli - Journal of High Energy Physics, 2017 - Springer
A bstract In global fits of parton distribution functions (PDFs) a large fraction of data points,
mostly from the HERA collider, lies in a region of x and Q 2 that is sensitive to small-x …