# SPIN 2018

9-14 September 2018
University of Ferrara
Europe/Rome timezone
23RD INTERNATIONAL SPIN SYMPOSIUM

## Accessing the Gluon Sivers Function at a future Electron-Ion Collider

13 Sep 2018, 15:10
20m

### A8

Parallel Sessions Future Facilities and Experiments

### Speaker

Dr Liang Zheng (China University of Geosciences (Wuhan))

### Description

In this work, we present a systematic study on the feasibility of probing the largely unexplored transverse momentum dependent gluon Sivers function (GSF) in open charm production, high p$_T$ charged di-hadron and di-jet production at a future high energy, high luminosity Electron-Ion Collider (EIC). The Sivers function is a measure for the anisotropy of the parton distributions in momentum space inside a transversely polarized nucleon. It is proposed that it can be studied through single spin asymmetries in the photon-gluon fusion subprocess in electron proton collisions at the EIC. Using a well tuned Monte Carlo model for deep inelastic scattering, we estimate the possible constraints of the GSF from the future EIC data. A comparison of all the accessible measurements illustrates that the di-jet channel is the most promising way to constrain the magnitude of the GSF over a wide kinematic range.

### Primary author

Dr Liang Zheng (China University of Geosciences (Wuhan))

### Co-authors

Prof. Bo-wen Xiao (Central China Normal University) Dr Elke-Caroline Aschenauer (BNL) Dr J.H. Lee (Brookhaven National Laboratory) Prof. Zhong-bao Yin (Central China Normal University)

 Slides