https://doi.org/10.1140/epjc/s10052-023-12065-x
Regular Article - Theoretical Physics
Deeply virtual compton scattering at future electron-ion colliders
1
Institute of Modern Physics, Chinese Academy of Sciences, 730000, Lanzhou, China
2
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, 100049, Beijing, China
3
Department of Physics, University of Illinois, 60607, Chicago, IL, USA
d
yezhenyu@uic.edu
e
xchen@impcas.ac.cn
Received:
7
June
2023
Accepted:
24
September
2023
Published online:
6
October
2023
The study of hadronic structure has been carried out for many years. Generalized parton distribution functions (GPDs) provide broad information on the internal structure of hadrons. Combining GPDs and high-energy scattering experiments, we expect yielding three-dimensional physical quantities from experiments. The Deeply Virtual Compton Scattering (DVCS) process is a powerful tool for studying GPDs. It is one of the important experiments of Electron Ion Collider (EIC) and Electron ion collider at China (EicC) in the future. In the initial stage, the proposed EicC will have polarized electrons with energies of 
GeV colliding with polarized protons with energies of 
GeV, with luminosity up to 
cm
s
. EIC, which will be constructed in the coming years, will cover center-of-mass energies ranging from 30 to 50 GeV, with a luminosity of about 
cm s. In this work, we present a detailed simulation of DVCS to study the feasibility of experiments at EicC and EIC. Referring the method used by HERMES Collaboration, and comparing the model calculations with pseudo data of asymmetries attributed to the DVCS, we obtained a model-dependent constraint on the total angular momentum of up and down quarks in the proton.
© The Author(s) 2023
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