Speaker
Michael Engelhardt
(New Mexico State University)
Description
The status of an ongoing program of evaluating TMD observables
within Lattice QCD is reviewed. These lattice calculations are
based on a definition of TMDs through hadronic matrix elements
of quark bilocal operators containing staple-shaped gauge
connections. A parametrization of the matrix elements in terms
of invariant amplitudes serves to cast them in the Lorentz frame
preferred for a lattice calculation. A survey of the twist-2 TMD
sector as well as selected twist-3 TMD results are presented, and
advances in establishing control over systematic uncertainties
are exhibited.
Primary author
Michael Engelhardt
(New Mexico State University)
