Results 61 to 70 of about 903,040 (213)
Collinear matching for next-to-leading power transverse-momentum distributions
Physics Letters B, 2023 Phenomenological studies of transverse momentum dependent (TMD) parton distributions rely on the expansion in small values of the transverse separation of fields, where TMD parton distributions match onto collinear parton distribution functions.
Simone Rodini +2 more
doaj +1 more source
Open-source QCD analysis of nuclear parton distribution functions at NLO and NNLO [PDF]
Physical Review D, 2019 We present new sets of nuclear parton distribution functions (nPDFs) at next-to-leading order and next-to-next-to-leading order. Our analyses are based on deeply inelastic scattering data with charged-lepton and neutrino beams on nuclear targets.
Marina Walt, I. Helenius, W. Vogelsang
semanticscholar +1 more source
Polarized parton distribution functions in the nucleon [PDF]
Physical Review D, 2000 Polarized parton distribution functions are determined by using world data from the longitudinally polarized deep inelastic scattering experiments. A new parametrization of the parton distribution functions is adopted by taking into account the positivity and the counting rule.
Goto, Y. +10 more
openaire +2 more sources
EPJ Web of Conferences, 2017 We briefly discuss the current status of lattice QCD simulations and review selective results on nucleon observables focusing on recent developments in the lattice QCD evaluation of the nucleon form factors and radii, parton distribution functions and ...
Alexandrou Constantia
doaj +1 more source
Physics Letters B, 2017 In this paper we present a new and efficient analytical solutions for evolving the QCD⊗QED DGLAP evolution equations in Mellin space and obtain the parton distribution functions (PDFs) in perturbative QCD including the QED corrections.
Marzieh Mottaghizadeh +2 more
doaj +1 more source
New parton distribution functions for the photon [PDF]
Nuclear Physics B, 1997 We present new improved parton distributions for the photon. We fit {\bf all} available data on the photon structure function, $F^γ_{2}(x,Q^2)$, with $Q^2\ge 3$ GeV$^2$, in order to determine the quark distributions. We also pay particular attention to the gluon distribution in the photon, $g^γ(x,Q^2)$, which has been poorly constrained in earlier ...
Gordon, L. E., Storrow, J. K.
openaire +2 more sources
Light-Cone Parton Distribution Functions from Lattice QCD. [PDF]
Physical Review Letters, 2018 We extract parton distribution functions (PDFs) of the nucleon from lattice QCD using an ensemble of gauge field configurations simulated with light quark masses fixed to their physical values.
C. Alexandrou +5 more
semanticscholar +1 more source
Parton physics on a quantum computer
Physical Review Research, 2020 Parton distribution functions and hadronic tensors may be computed on a universal quantum computer without many of the complexities that apply to Euclidean lattice calculations.
Henry Lamm +2 more
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Double parton distributions in the pion in the Nambu–Jona-Lasinio model
Journal of High Energy Physics, 2019 Two-parton correlations in the pion, a non perturbative information encoded in double parton distribution functions, are investigated in the Nambu–Jona-Lasinio model.
Aurore Courtoy +2 more
doaj +1 more source
CJ15 global PDF analysis with new electroweak data from the STAR and SeaQuest experiments
SciPost Physics Proceedings, 2023 We present updates to a recent CTEQ-Jefferson Lab (CJ) global analysis of parton distribution functions with a new set of electroweak data that provide unique access to quark flavor separation in the proton.
Sanghwa Park, Alberto Accardi, Xiaoxian Jing, Joseph F. Owens
doaj +1 more source