Speaker
Hervé Dutrieux
(College of William & Mary)
Description
Perturbative evolution offers the well-identified possibility of reconstructing the skewness dependence of generalized parton distributions (GPDs) in the small Bjorken x domain. This general idea has notably been used to constrain gluon PDFs at small x from exclusive heavy meson photoproduction. We study the regime of validity and the uncertainty associated to this method. We discuss more generally the crucial role that evolution plays to guide modelling strategies of GPDs, whether from exclusive processes at small and moderate skewness or from lattice data.
Primary author
Hervé Dutrieux
(College of William & Mary)
Co-authors
Michael Winn
(Irfu / CEA Sacly)
Valerio Bertone
(CEA Paris-Saclay)
