12 research outputs found
Exclusive production of quarkonia as a probe of the GPD E for gluons
Exclusive quarkonium photo- and electro-production off the nucleon is studied
in the framework of generalized parton distributions (GPDs). The short distance
part of the process is treated at leading order in perturbative Quantum
Chromodynamics. The main focus is on the GPD E for gluons. On the basis of
different models for E we estimate the transverse target spin asymmetry for
typical kinematics of a future Electron Ion Collider. We also explore the
potential of measuring the polarization of the recoil nucleon.Comment: 4 page