Results 11 to 20 of about 2,008 (184)
Unintegrated parton distributions [PDF]
Physical Review D, 2001 LaTeX, 19 pages including 5 figures, submitted to Phys.
Kimber, M. A. +2 more
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An analysis of polarized parton distribution functions with nonlinear QCD evolution equations
Nuclear Physics B, 2022 We present the polarized parton distribution functions from a QCD analysis of the worldwide polarized deep inelastic scattering data, based on the dynamical parton distribution model.
Chengdong Han +3 more
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GENERALIZED PARTON DISTRIBUTIONS [PDF]
Deep Inelastic Scattering, 2002 Published by Elsevier Science, North-Holland, Amsterdam [u.a.]
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A new generation of simultaneous fits to LHC data using deep learning
Journal of High Energy Physics, 2022 We present a new methodology that is able to yield a simultaneous determination of the Parton Distribution Functions (PDFs) of the proton alongside any set of parameters that determine the theory predictions; whether within the Standard Model (SM) or ...
Shayan Iranipour, Maria Ubiali
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Are Parton distributions positive? [PDF]
Nuclear Physics B - Proceedings Supplements, 1999 We show that the naive positivity conditions on polarized parton distributions which follow from their probabilistic interpretation in the naive parton model are reproduced in perturbative QCD at the leading log level if the quark and gluon distribution are defined in terms of physical processes. We show how these conditions are modified at the next-to-
Forte, Stefano +2 more
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Double parton distributions in the pion from lattice QCD
Journal of High Energy Physics, 2021 We perform a lattice study of double parton distributions in the pion, using the relationship between their Mellin moments and pion matrix elements of two local currents. A good statistical signal is obtained for almost all relevant Wick contractions. We
Gunnar S. Bali +6 more
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International Journal of Modern Physics A, 2004 I discuss our current understanding of parton distributions. I begin with the underlying theoretical framework, and the way in which different data sets constrain different partons, highlighting recent developments. The methods of examining the uncertainties on the distributions and those physical quantities dependent on them is analyzed.
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An analysis of parton distribution functions of the pion and the kaon with the maximum entropy input
European Physical Journal C: Particles and Fields, 2021 We present pion and kaon parton distribution functions from a global QCD analysis of the experimental data within the framework of dynamical parton model.
Chengdong Han +3 more
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Generalized Parton Distributions [PDF]
26th Annual Hampton University Graduate Studies Program, Jefferson Lab, May 30, 2011, 2000 Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive electroproduction processes require a generalization of the usual parton distributions for the case when long-distance information is accumulated in nondiagonal matrix elements of quark and gluon light-cone operators.
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Two-loop evolution kernels for colour dependent double parton distributions
Journal of High Energy Physics, 2023 A key ingredient in the description of double parton distributions is their scale dependence. If the colour of each individual parton is summed over, the distributions evolve with the same DGLAP kernels as ordinary parton distributions. This is no longer
Markus Diehl +2 more
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