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　　報告題目: Deciphering the 3-D structure of the proton: challenges and opportunities 

　　報告人：趙勇 博士 (Massachusetts Institute of Technology) 

　　時間：2019年6月27日（星期四）15:00 

　　地點：近代物理所5號樓1006會議室 

　　Abstract: 

　　The parton model is a simple ubiquitous language that describes the inner structure of hadrons such as the proton. The longitudinal and transverse proton structures, as well as the spin-dependent ones, are described by a class of parton distributions that are not all well understood from theory or experiment. In this talk, I will review the theoretical and experimental developments towards the determination of these distributions, and discuss the challenges to both sides. Then I will talk about the recent progress in the calculation of the x-dependence of parton distributions from lattice QCD, as well as its complimentary—and sometimes guiding—role to future electron ion colliders.