Towards three-dimensional nucleon structures at the Electron-Ion Collider in China: A study of the Sivers function

Abstract

Transverse momentum-dependent parton distribution functions (TMDs) provide three-dimensional imaging of the nucleon in the momentum space. With its fundamental importance in understanding the spin structure of the nucleon, the precise measurement of TMDs is considered as one of the main physics topics of the proposed Electron-Ion Collider in China (EicC). In this paper, we investigate the impact of future semi-inclusive deep inelastic scattering (SIDIS) data from EicC on the extraction of TMDs. Taking the Sivers function as an example, we revisited the world SIDIS data, which serves as the input for the simulated EicC data. By performing a combined analysis of the world data and the EicC simulated data, we quantitatively demonstrate that the Sivers functions can be precisely determined for various quark flavors, especially for sea quarks, in the region, $x>0.005$, directly covered by the EicC.

14 pages, 9 figures

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Cited by in corpus (6)

• Study of worm-gear-T function $g_{1T}$ with semi-inclusive DIS data
• First Extraction of Transverse Momentum Dependent Helicity Distributions
• Transverse structure of the proton beyond leading twist: A light-front Hamiltonian approach
• Nucleon Structure from Basis Light-Front Quantization : Status and Prospects
• Assessing the impact of the electron ion collider in China on Deeply Virtual Compton Scattering
• The Sivers asymmetry of vector meson production in semi-inclusive deep inelastic scattering