Kavli Affiliate: Feng Yuan
| First 5 Authors: Yoshitaka Hatta, Feng Yuan, , ,
| Summary:
We discuss the angular dependence of the recently proposed transverse
momentum dependent quark and gluon diffractive parton distributions at
small-$x$. We introduce the difractive versions of the Sivers function and the
elliptic gluon Wigner distribution and evaluate them in simple models with
gluon saturation and study their geometric scaling properties. We also show
that the diffractive version of the linearly polarized gluon distribution
identically vanishes to leading order. These distributions enrich the physics
opportunities for measuring semi-inclsuive diffractive DIS processes at the
future electron-ion colliders.
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