Ian Cloët
The Institute of Nuclear and Particle Physics (INPP) presents Ian Cloët, of Argonne National Laboratory, presenting “Insights into Hadron Structure from QCD’s Dyson – Schwinger Equations” on Tuesday, Nov. 4, at 4 p.m. in the Roger W. Finlay Conference Room located in the Edwards Accelerator Laboratory.
Abstract: Quantum Chromodynamics (QCD) is the only known example in nature of a fundamental quantum field theory that is innately non-perturbative.
Solving QCD will have profound implications for our understanding of the natural world, for example, it will explain how light quarks and massless gluons bind together to form hadrons and thereby explain the origin of more than 98% of the visible mass in the universe. Given QCDs complexity, the best promise for progress is a strong interplay between experiment and theory.
I will discuss several studies using QCDs Dyson-Schwinger Equations, which have been motivated by key experimental results that challenge our understand of hadron structure. Examples include the pion’s electromagnetic form factor and its relation to the pion’s parton distribution amplitude. For baryons, focus will be given to nucleon electromagnetic form factors and the possibility of a zero-crossing in the proton GE/GM form factor ratio. A perspective will be given on what these experiments tell us about the non-perturbative structure of QCD, in particular, the influence of dynamical chiral symmetry breaking on hadron observables.
Comments