Evolution and interpolation of double parton distributions using Chebyshev grids [PDF]
European Physical Journal C: Particles and Fields, 2023 Double parton distributions are the nonperturbative ingredients needed for computing double parton scattering processes in hadron–hadron collisions. They describe a variety of correlations between two partons in a hadron and depend on a large number of ...
Markus Diehl +3 more
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Pion generalized parton distributions and light-front wave functions in the Nambu–Jona-Lasinio model
Nuclear Physics B, 2021 Pion generalized parton distributions and light-front wave functions are investigated in the framework of Nambu–Jona-Lasinio model. The properties of pion generalized parton distributions and light-front wave functions are examined separately. Proceeding
Jin-Li Zhang +3 more
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Parton interpretation and twist-4 parton distributions
Physics Letters B, 2021 Through explicit examples we show that twist-4 parton distributions have no parton interpretation in the sense that parton or partons inside a hadron can carry the momentum fraction x of the hadron with x>1 or x1.
J.P. Ma, Z.Y. Pang, G.P. Zhang
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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
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ρ meson GPDs and IPDs with a light-front constituent quark model [PDF]
EPJ Web of Conferences, 2019 We investigate the ρ meson unpolarized Generalized Parton Distributions based on a Light-Front Constituent Quark Model. Moreover, by employing a Gaussian form wave packet, we apply the obtained generalized parton distributions to get the Impact Parameter
Sun Bao-Dong, Dong Yu-Bing
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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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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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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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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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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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