中国物理学会高能物理分会第十一届全国会员代表大会暨学术年会

Electron Ion Colliders are proposed in both US and China. In this talk, I will discuss the main physics programs in these facilities.

Understanding the spin structure of nucleon is a longstanding and fundamental challenge in nuclear physics. The Relativistic Heavy Ion Collider (RHIC), s the world only polarized proton collider, has provided unique opportunities to access the spin dependent distributions inside proton. In the past two decades, RHIC has carried out a lot of unprecedented experimental constraints on nucleon...

We briefly report our recent progress on the study of the polarized fragmentation functions of $\Lambda$ hyperon in unpolarized semi-inclusive deep-inelastic scatterings and electron-positron annihilations at not-so-high energies. In particular, we present a simple but practical method on how to measure the azimuthal-angle-dependent longitudinal polarization and the transverse polarization...

Coherent vector meson photoproduction plays important role for investigating the partionic composition of protons and nuclear targets. Especially, it provides a novel tool to prob the gluonic structure of nuclei. In this talk, we present a theoretical framework to calculate the photoproduction cross section of vector mesons. In this framework, we derive an equivalent approximate photon...