通俗演講

Title

Understanding the Proton Structures from First Principles

Speaker

Distinguished Prof. Jiunn-Wei Chen

Department of Physics, National Taiwan University

Hosted by

李湘楠 特聘研究員 (Distinguished Research Fellow Li,Hsiang-Nan)

Abstract

Parton distribution functions are important quantities describing the probability densities of quarks and gluons within e.g. the proton. They have been parameterized and fitted phenomenologically to known experimental data, and serve as key inputs to predicting, with estimated uncertainties, cross sections in high-energy scattering experiments. A precision first-principle calculation of PDFs from quantum chromodynamics (QCD), the underlying theory of strong interactions, has long been a holy grail in nuclear and high-energy physics. I will review the recent developments in this direction.