Speaker
Description
"Quarks and gluons (collectively called partons in the high energy regimes) are fundamental degrees of freedom of QCD and are deeply confined in hadrons and nuclei. Their connections are mapped into parton distribution functions (PDFs), which can be extracted from QCD global fit to experimental data. Meanwhile, the emergent hadronization of partons is encoded in fragmentation functions (FFs) similar to PDFs. Those PDFs and FFs are closely related, and their information can be extracted simultaneously from data through semi-inclusive deep-inelastic scattering in lepton-hadron scatterings. The future U.S. electron-ion collider (EIC) could provide essential playgrounds for pursuing emergent hadronization dynamics. This could impact other physics, such as studying multidimensional parton distributions in the nucleon and nuclei.
In this talk, after briefly recapturing essential physics at the U.S. EIC, we will show theoretical descriptions of light hadron production and heavy quarkonium production in QCD factorization in lepton-hadron scatterings. Then, we will discuss how the EIC can help us understand emergent hadron production, especially exotic states of heavy quarkonium in vacuum and nuclear medium."
