Conveners
Plenary Session 4
- Dave Gaskell (Jefferson Lab)
Description
co-host: Garth Huber
Heavy quark production processes, for both open and bound heavy quark pair production, provide promising probes of transverse momentum dependent gluon distributions (gluon TMDs). In this talk the prospects for gluon TMD extractions using heavy quark production processes will be discussed, focussing on the distributions of unpolarized and linearly polarized gluons inside unpolarized protons,...
The Compton scattering process in different kinematical regimes provides a variety of information on the proton structure. In the near threshold regime, real and virtual Compton scattering give access, respectively, to the static polarizabilities and the generalized polarizabilities of the proton. In recent years, a series of new measurements provided new extractions of the polarizabilities....
Lattice QCD has emerged as an essential framework for understanding the properties of hadrons from first principles. Many features of strong-coupling QCD, such as the excited state spectrum and the internal structure of hadrons characterized by light-cone-separated matrix elements, that were once thought inaccessible to ab initio computation, are now explored in detail. In this talk, I focus...
In 2010, a new method using muonic hydrogen spectroscopy led to a proton charge radius ($r_p$) result that was nearly ten times more precise but significantly smaller than results obtained using the two traditional methods, namely e-p scattering and ordinary Hydrogen spectroscopy. This
discrepancy triggered the so-called "proton charge radius puzzle". To investigate this discrepancy, the PRad...
