Hadron structure 4
- Ian Cloet (Argonne Natl Lab)
Prof. simonetta liuti (university of virginia)
We discuss the canonical (Ji) and kinetic/mechanical (Jaffe and Manohar) definitions of partonic orbital angular momentum (OAM). It was recently shown by Hatta and Burkardt that the two definitions correspond to the second moment in intrinsic k_T of the same generalized transverse momentum distribution (GTMD), while they differ in their gauge link structure. At the same time, as first observed...
Taku Izubuchi (Brookhaven National Laboratory)
Dr Giannis Koutsou (The Cyprus Institute)
Recent nucleon structure results from the lattice will be reviewed, from simulations with physical or near physical quark masses. Details on the calculation of quantities such as the nucleon axial charge and the nucleon momentum fraction will be presented. An outlook towards lattice calculations which can impact new physics searches will follow.
Prof. Matthias Burkardt (NMSU)
Definitions of orbital angular momentum based on Wigner distributions are used to discuss the connection between the Ji definition of the quark orbital angular momentum and that of Jaffe and Manohar. The difference between these two definitions can be interpreted as the change in the quark orbital angular momentum as it leaves the target in a DIS experiment.The mechanism responsible for that...