This handbook provides a comprehensive review of transverse-momentum-dependent
parton distribution functions and fragmentation functions, commonly referred to as …

We present a model calculation of transverse-momentum-dependent distributions (TMDs) of
gluons in the nucleon. The model is based on the assumption that a nucleon can emit a …

We present the distribution of unpolarized quarks in a transversely polarized proton in three-
dimensional momentum space. Our results are based on the extractions of the unpolarized …

A bstract A comprehensive set of azimuthal single-spin and double-spin asymmetries in
semi-inclusive leptoproduction of pions, charged kaons, protons, and antiprotons from …

The agreement between calculations inspired by the resummation of energy logarithms,
known as BFKL approach, and experimental data in the semi-hard sector of QCD has …

We study the leading twist gluon generalized parton distributions and the gluon angular
momentum inside the proton within a light-cone spectator model. Using the light-cone wave …

We calculate the leading twist pion unpolarized transverse momentum distribution f 1 (x, k T
2) and the Boer-Mulders function h 1⊥(x, k T 2), using leading Fock-state light front wave …

We present the generalized parton distributions (GPDs) for the valence quarks of the pion
and the kaon in both momentum space and position space within the basis light-front …

The ρ meson gravitational form factors are studied based on a light-front constituent quark
model which has been successfully employed to calculate its generalized parton …

Unraveling the inner dynamics of gluons and quarks inside nucleons is a primary target of
studies at new-generation colliding machines. Finding an answer to fundamental problems …