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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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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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PARTONIC INTERPRETATION OF GENERALIZED PARTON DISTRIBUTIONS [PDF]
International Journal of Modern Physics: Conference Series, 2011 Dispersion relations have been applied to hard exclusive processes suggesting that generalized parton distributions can be fully determined from their values on a kinematical ridge. We show significant pitfalls associated that vitiate this approach. We suggest an improved treatment of this assumption.
Goldstein, Gary R., Liuti, Simonetta
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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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Double parton distributions out of bounds in colour space
European Physical Journal C: Particles and Fields, 2021 We investigate the positivity of double parton distributions with a non-trivial dependence on the parton colour. It turns out that positivity is not preserved by leading-order evolution from lower to higher scales, in contrast to the case in which parton
M. Diehl +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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Journal of High Energy Physics, 2023 Multi-parton distributions in a proton, the nonperturbative quantities needed to make predictions for multiple scattering rates, are poorly constrained from theory and data and must be modelled.
Oleh Fedkevych, Jonathan R. Gaunt
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, 2022 We discuss the determination of the parton substructure of hadrons by casting it as a peculiar form of pattern recognition problem in which the pattern is a probability distribution, and we present the way this problem has been tackled and solved. Specifically, we review the NNPDF approach to PDF determination, which is based on the combination of a ...
Forte S., Carrazza S.
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Parton distribution functions [PDF]
Nuclear Physics B - Proceedings Supplements, 1997 Parton distribution functions give the probability to find partons (quarks and gluons) in a hadron as a function of the fraction x of the proton's momentum carried by the parton. They are conventionally defined in terms of matrix elements of certain operators.
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The multidimensional nucleon structure
EPJ Web of Conferences, 2016 We discuss different kinds of parton distributions, which allow one to obtain a multidimensional picture of the internal structure of the nucleon.
Pasquini Barbara, Lorcé Cédric
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