Accessing Compton Form Factors at the Electron Ion Collider in China: An Impact study on $\text{Im}\mathcal{E}$

Abstract

We estimate the impact of asymmetry measurements of Deeply Virtual Compton Scattering (DVCS) with transversely polarized proton beam taken at a future Electron Ion Collider in China (EicC) on the extraction of Compton Form Factors (CFFs). The CFFs extracted from an analysis based on artificial neural-network approach are reweighted by means of pseudo-data generated in the expected kinematic region of EicC. We find a remarkable improvement in the extraction of CFF $\text{Im}\mathcal{E}$, especially at the range of parton momentum fraction $x\sim$ 0.01, thus hinting for a future experimental probe of the parton orbital angular momentum. This work casts a glance at a practical implementation of Bayesian reweighting method on CFFs' impact study.

22 pages, 6 figures, published version

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Cited by in corpus (3)

• Spatial imaging of proton via leading-twist non-skewed GPDs with basis light-front quantization
• Exclusive Charmonium Production at the Electron-ion collider in China
• Assessing the impact of the electron ion collider in China on Deeply Virtual Compton Scattering