|Wednesday 8 December 2021|
|Events for day: Monday 01 November 2021|
| 11:00 - 12:00 Journal Club: Experiment & Phenomenology - google meet|
Shadow generalized parton distributions: a practical approach to the deconvolution problem of DVCS
PARTICLES AND ACCELERATORS
Abstract: Deeply virtual Compton scattering (DVCS) attracts a lot of interest due to its sensitivity to generalized parton distributions (GPDs) which provide a rich access to the partonic structure of hadrons. However, the practical extraction of GPDs for this channel requires a deconvolution procedure, whose feasibility has been disputed. We provide a practical approach to this problem based on a next-to-leading order analysis and a careful study of evolution effects, by exhibiting shadow GPDs with arbitrarily small imprints on DVCS observables at current and future experimental facilities. This shows that DVCS alone will not allow for a mod ...