Speaker
Description
Lepton scattering is an established ideal tool for studying the structures of nucleons and nuclei. As a future high energy nuclear physics project, an Electron-ion collider in China (EicC) has been proposed, to be constructed based on the High Intensity heavy-ion Accelerator Facility (HIAF) which is currently under construction, together with a new electron ring. The proposed collider will provide highly polarized electrons with a polarization of 80% and protons with a polarization of 70% with variable center of mass energies from 15 to 20 GeV and the luminosity of (2–3) × $10^{33}$ $\rm cm^{−2} · s^{−1}$. Polarized deuterons and helium-3, as well as unpolarized ion beams from Carbon to Uranium, will be also available at the EicC. The main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region, including 3D tomography of nucleon; the partonic structure of nuclei and the parton interaction with the nuclear environment; the exotic states, especially those with heavy flavor quark contents. The EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United States. The physics interests and the status and prospects of the EicC project will be presented in this talk.
