Nov 8 – 13, 2024
Hefei Crowne Plaza
Asia/Shanghai timezone

Precision studies of the DVCS process at JLab

Nov 9, 2024, 10:30 AM
35m
Cypress Room (翠海厅) (Hefei Crowne Plaza )

Cypress Room (翠海厅)

Hefei Crowne Plaza

1st Floor, Hefei Crowne Plaza, Building A, 598 Huangshan Road, Hefei, 230088 合肥皇冠假日酒店,一楼翠海厅
Invited Plenary

Speaker

Julie Roche (Ohio University)

Description

Generalized Parton Distributions (GPDs) describe the correlation between the spatial distribution of the quarks and its longitudinal momentum fraction. Their definition in the mid-1990s has revolutionized our approach to the description of the internal structure of the nucleon. The study of the GPDs is at the forefront of today’s hadronic physics enterprise.
Deeply Virtual Compton Scattering (DVCS) off the nucleon ($\gamma^* N \rightarrow \gamma N $) is the simplest process sensitive to the GPDs. It has been measured at Hera, Compass, and JLab. In this talk, I will review the results of the Hall A-C @ JLab scheme. In these experiments, an EM calorimeter is used in coincidence with a well-known high-resolution spectrometer. This relatively simple scheme allows for precise (~ 5%) measurements of absolute beam polarized and unpolarized cross-sections essential for studying GPDS. I will show DVCS results off proton and neutrons target as well as results on exclusive pion production of those same targets.

Primary author

Julie Roche (Ohio University)

Presentation materials