Speaker
Andrea Signori
(University of Turin and INFN)
Description
In this talk a QED-based analog of the Sivers effect in QCD will be presented. In particular, Compton scattering off an ionized Helium-4 target is used as a process to access the Sivers effect for the electron in the atomic target.
To account for the motion of the bound electron in the Helium target, hydrogen-like wave functions in momentum space are employed.
Both the unpolarized TMD distribution function and the Sivers function for the electron bound in the target are calculated. Predictions for the cross section and for the single spin asymmetry are discussed.
Authors
Alessandro Bacchetta
(University of Pavia and INFN Pavia)
Andrea Minotti
(University of Turin)
Andrea Signori
(University of Turin and INFN)
Christine Aidala
(University of Michigan)
Dylan Manna
(University of Michigan)
