Low-virtuality leptoproduction of open-charm as a probe of the gluon Sivers function

Abstract

We propose low-virtuality leptoproduction of open-charm, $p^{\uparrow }l\to D^0+X$, as a probe of the gluon Sivers function (GSF). At leading-order, this process directly probes the gluon content of the proton, making detection of a trasverse single-spin asymmetry in the process a clear indication of a non-zero GSF. Considering the kinematics of the proposed future Electron-Ion Collider (EIC), we present predictions for asymmetry using fits of the GSF available in literature. We also study the asymmetry at the level of muons produced in D-meson decays and find that the asymmetry is preserved therein as well.

Submission to proceedings of Light-Cone 2017 conference

References in corpus (5)

• Parton distributions for the LHC
• Azimuthal and Single Spin Asymmetries in Hard Scattering Processes
• Towards a first estimate of the gluon Sivers function from $A_N$ data in $pp$ collisions at RHIC
• Azimuthal asymmetries for hadron distributions inside a jet in hadronic collisions
• Transverse Single Spin Asymmetry in $p+p^{\uparrow }\to D+X$