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Title: Accessing the gluon Sivers function at a future electron-ion collider

Journal Article · · Physical Review D

In this paper, 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 pT charged di-hadron and di-jet production at a future high energy, high luminosity Electron-Ion Col- lider (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 mea- surements illustrates that the di-jet channel is the most promising way to constrain the magnitude of the GSF over a wide kinematic range.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704
OSTI ID:
1464305
Alternate ID(s):
OSTI ID: 1471182
Report Number(s):
BNL-209044-2018-JAAM; PRVDAQ; 034011
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 98 Journal Issue: 3; ISSN 2470-0010
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (2)

Single-spin asymmetries in $$p^\uparrow p \rightarrow J/\psi +X$$p↑p→J/ψ+X within a TMD approach: role of the color octet mechanism journal December 2019
Gluon TMDs and NRQCD matrix elements in $${J}{/}{\psi }$$J/ψ production at an EIC journal January 2020

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