SMU Physics Department Speaker Series Seminar - 2020-09-14 - Vincent Cheung (UC Davis)

Title: Quarkonium production and polarization in the color evaporation model

Abstract:
One of the best ways to understand hadronization in QCD is to study the production of quarkonium. The color evaporation model (CEM) and Non-relativistic QCD (NRQCD) can describe production yields rather well but spin-related measurements like the polarization are stronger tests. In this talk, I will outline the quarkonium polarization puzzle and present recent attempts to use the color evaporation model to describe the polarization of quarkonium production.