Next-to-Next-to-Leading Order Global Analysis of Polarized Parton Distribution Functions. [PDF]
Physical Review LettersWe present a next-to-next-to-leading order (NNLO) global QCD analysis of the proton's helicity parton distribution functions, the first of its kind.
I. Borsa +4 more
semanticscholar +1 more source
Ad Lucem: QED parton distribution functions in the MMHT framework [PDF]
The European Physical Journal C, 2019 We present the MMHT2015qed PDF set, resulting from the inclusion of QED corrections to the existing set of MMHT Parton Distribution Functions (PDFs), and which contain the photon PDF of the proton.
L. Harland–Lang +3 more
semanticscholar +1 more source
Physics Letters B, 2022 Structure functions of polarized spin-1 hadrons will be measured at various accelerator facilities in the near future. Recently, transverse-momentum-dependent and collinear parton distribution functions were theoretically proposed at twist 3 and twist 4 ...
S. Kumano, Qin-Tao Song
doaj +1 more source
Bayesian inference with Gaussian processes for the determination of parton distribution functions [PDF]
The European Physical Journal CWe discuss a Bayesian methodology for the solution of the inverse problem underlying the determination of parton distribution functions (PDFs). In our approach, Gaussian processes (GPs) are used to model the PDF prior, while Bayes’ theorem is used in ...
A. Candido +3 more
semanticscholar +1 more source
Parton Distribution Functions from a Light Front Hamiltonian and QCD Evolution for Light Mesons. [PDF]
Physical Review Letters, 2019 We obtain the pion and the kaon parton distribution functions from the eigenstates of a light front effective Hamiltonian in the constituent quark-antiquark representation suitable for low-momentum scale applications.
Jiangshan Lan +4 more
semanticscholar +1 more source
Structure Functions and Parton Distributions [PDF]
Nuclear Physics A, 2005 12 pages, 8 figures, plenary talk at ...
openaire +2 more sources
Behavior of diffractive parton distribution functions [PDF]
Physical Review D, 1996 Diffractive parton distribution functions give the probability to find a parton in a hadron if the hadron is diffractively scattered. We provide an operator definition of these functions and discuss their relation to diffractive deeply inelastic scattering and to photoproduction of jets at HERA.
Berera, Arjun, Soper, Davison E.
openaire +3 more sources
Reconstructing parton distribution functions from Ioffe time data: from Bayesian methods to neural networks [PDF]
Journal of High Energy Physics, 2019 The computation of the parton distribution functions (PDF) or distribution amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open problem in high energy nuclear physics.
J. Karpie +3 more
semanticscholar +1 more source
Parton Distribution Functions from Ioffe Time Pseudodistributions from Lattice Calculations: Approaching the Physical Point. [PDF]
Physical Review Letters, 2020 We present results for the unpolarized parton distribution function of the nucleon computed in lattice QCD at the physical pion mass. This is the first study of its kind employing the method of Ioffe time pseudodistributions. Beyond the reconstruction of
B. Joó +5 more
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Semi-inclusive deeply inelastic electron nucleus scattering in the eN collinear frame
Nuclear Physics B, 2023 Our understanding of the parton-level structure in the nucleon comes predominantly from the electron deeply inelastic scattering measurements with very high precision. It deserves further study.
Weihua Yang, Xinghua Yang
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