Speaker
Description
We have performed several global Quantum Chromodynamics (QCD) analyses to provide information on the one-dimensional (1D) structure of the proton using the latest experimental data available. Among the mysteries that remain within the proton, we provide insight on the nonperturbative nature of the proton’s sea quarks, for both cases where the proton is unpolarized and longitudinally polarized. We also bring new information on the “proton spin puzzle,” which concerns the delegation of the proton’s spin into its constituent quarks and gluons. We shed light on the proton’s transversely polarized structure, where current results from global QCD analyses and lattice QCD seemingly fail to paint a consistent picture. Our analyses also reveal a new feature of nuclear effects within light, highly asymmetric nuclei such as helium and tritium. Finally, we perform derivations in a spectator diquark model to glean information on the proton’s 3D structure, and calculate moments that can be used in future lattice QCD studies.
