Particle Physics Seminar: Exclusive Studies of Proton Structure: From Jefferson Lab to the EIC

Zoom: https://tau-ac-il.zoom.us/s/84772186370?pwd=RUErYy9QMzltMXlNcTdNNHl2bzZvdz09

Abstract:

The proton is the most abundant constituent of visible matter in the universe. Starting from the early work of Hofstadter, measurements of hard electron scattering reactions have continuously evolved our understanding of the proton’s structure and led to our current understanding in terms of many-body QCD. While remarkable progress has been made, we still do not understand the proton’s three-dimensional structure and thereby the origin of its emergent properties such as spin and mass. Utilizing recent theoretical advances, a new family of deeply virtual exclusive scattering processes (DVEP) has been proposed to directly probe the QCD energy-momentum tensor with the goal of gaining new insight into the structure and properties of the proton in the context of the strong interaction. 
In this talk, I will present results from our studies of the deeply virtual Compton scattering (DVCS) reaction that provide determinations for the first time of previously inaccessible observables on proton structure. I will focus on new results from the CLAS12 experiment at Jefferson-Lab in the valence quark regime and also discuss the evolution of this program over a much larger kinematic regime at the future Electron-Ion Collider that is currently being realized at Brookhaven National Laboratory.
 

Seminar Organizers: Dr. Michael Geller & Dr. Adi Ashkanzi