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

  

  报告题目: Deciphering the 3-D structure of the proton: challenges and opportunities 

  报告人:赵勇 博士 (Massachusetts Institute of Technology) 

  时间:2019627日(星期四)15:00 

  地点:近代物理所5号楼1006会议室 

  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.