Quantum Chromodynamics, the theory of quarks and gluons, whose interactions can be
described by a local SU (3) gauge symmetry with charges called “color quantum numbers” …

We provide an assessment of the energy dependence of key measurements within the
scope of the machine parameters for a US based electron–ion collider (EIC) outlined in the …

Abstract This White Paper presents an overview of the current status and future perspective
of QCD research, based on the community inputs and scientific conclusions from the 2022 …

We perform the first global QCD analysis of polarized inclusive and semi-inclusive deep-
inelastic scattering and single-inclusive e+ e-annihilation data, simultaneously fitting the …

We provide an analysis of the x dependence of the bare unpolarized, helicity, and
transversity isovector parton distribution functions (PDFs) from lattice calculations employing …

We present the first lattice-QCD calculation of the pion distribution amplitude using the large-
momentum effective field theory (LaMET) approach, which allows us to extract light cone …

We present the first lattice-QCD calculation of the isovector polarized parton distribution
functions (both helicity and transversity) using the large-momentum effective field theory …

We present a comprehensive new global QCD analysis of polarized inclusive deep-inelastic
scattering, including the latest high-precision data on longitudinal and transverse …

We present the first simultaneous global QCD analysis of spin-dependent parton distribution
functions alongside their spin-averaged counterparts and pion, kaon, and unidentified …

We review the present understanding of the spin structure of protons and neutrons, the
fundamental building blocks of nuclei collectively known as nucleons. The field of nucleon …