Tomographic Interpretations and Universality of GPDs with DDVCS

POSTER

Abstract

The goal of Double Deeply Virtual Compton Scattering (DDVCS) experiments is to better understand the internal structure of the nucleon. Previous attempts to resolve the internal structure of nucleons have resulted in electromagnetic form factors and parton distribution functions for elastic scattering and deep inelastic scattering processes, respectively. Generalized Parton Distributions (GPDs) are the latest attempt to unify these models of nucleon structure. The GPDs of DDVCS give us ability to investigate off of the diagonal where x ? = ±ξ. The main goal of our analysis is to determine the best experimental setup in order to deduce the kinematic variables on which GPDs depend from the lab observables. The effectiveness of our data collection in the laboratory is by determined the physical kinematics, Q2, Q′2,t, xi,φLM , φCM V , and θCM V . We can then run the DDVCS experiments and collect data, which is implicitly used to calculate the GPD of the nucleon.

*We acknowledge the outstanding support from the National Science Foundation, the Virginia Tech Physics department and the Virginia Tech Center forNeutrino Physics. This work was made possible by the National Science Foundation under grant No. PHY-2149165

Presenters

  • Melinda Yuan

    • Columbia University

Authors

  • Melinda Yuan

    • Columbia University
  • Jocelyn Robbins

    • CU Boulder