Conveners
Session II-b
- Anna Martin (INFN Trieste)
Alberto Accardi
(Hampton U. and Jefferson Lab)
12/12/2017, 11:00
A new collinear factorization analysis of inclusive DIS scattering with suitable non-perturbative “jet correlators” shows that a novel, non-perturbative spin-flip term associated with the invariant mass of the produced hadrons couples to the target's transversity distribution function. In inclusive cross sections, this provides a hitherto neglected and large contribution to the twist-3 part of...
Jacob Ethier
(College of William and Mary / Jefferson Lab)
12/12/2017, 11:25
It is well known that polarized semi-inclusive deep-inelastic scattering (SIDIS) observables play an important role in determining the spin structure of the proton. In addition to being used in global QCD analyses to constrain quark helicity distributions, especially for the sea quarks, SIDIS can also give information about the quark structure of a transversely polarized nucleon. In this talk,...
Kresimir Kumericki
(University of Zagreb)
12/12/2017, 11:45
After a brief reminder of the role of GPDs in description of hadron structure, I will review what is known about these functions after a decade and a half of experiments and fits to the data, with emphasis on DVCS. I will show results of global fits, both in traditional and in neural network approach, and discuss the project of public web page serving the resulting GPDs or Compton factors to...
Andrea Ferrero
(CEA-Saclay/IRFU/DPhN)
12/12/2017, 12:25
Generalised Parton Distribution functions (GPDs) have emerged as a very powerful tool to investigate the three-dimensional structure of nucleons, as they encode the correlation between the longitudinal momenta and the transverse positions of their constituents, quarks and gluons. GPDs appear in the non-perturbative description of lepton-induced exclusive reactions, and can be studied in fixed...
Qin-Tao Song
(Sokendai/KEK)
12/12/2017, 13:05
In order to understand the origin of proton spin, it is necessary to probe contributions from partonic orbital angular momenta. Recently, the generalized parton distributions (GPDs) have been investigated to find the partonic orbital-angular-momentum contributions. The GPDs contain information on form factors and parton distribution functions, and they are investigated by the deeply virtual...
