Mapping Parton Distribution Amplitudes and Functions

Parton distribution amplitudes (PDAs) and distribution functions (PDFs) play a key role in
hadron physics. Their (x,Q)-dependence reveals basic facts about the emergence of massscales
in the Standard Model, provides insights into confinement and bound-state structure,
and delivers critical inputs to hard-scattering formulae and cross-sections for deep-inelastic
scattering and Drell-Yan processes. New theoretical techniques yield novel and much
needed predictions for the x-dependence of PDAs and PDFs and enable their correlation
with measurable quantities that will allow for experimental validation at existing, upgraded
and planned facilities. It is crucial to exploit these developments, building on synergies
between different sub-disciplines. This workshop will therefore gather expert
experimentalists and theorists, with the aim of consolidating gains already made and
expediting progress towards definitive answers on the shortest possible time-scale. Success
will lay a firm foundation for the experimental and theoretical methods needed in the future
to chart the three-dimensional structure of hadrons.