Document Type
Report
Publication Date
2023
Pages
PR12+23-006 (1-23)
Abstract
We propose to use the High Momentum Spectrometer of Hall C combined with Neutral Particle Spectrometer (NPS) to perform high precision measurement of the deeply virtual compton scattering (DVCS) cross section using a beam of positrons. The combination of measurements with oppositely charged incident beams is the only unambiguous way to disentange the contribution of the DVCS² term in the photon electroproduction cross section from its interference with the Bethe-Heitler amplitude. This provies a stronger way to constrain the Generalized Parton Distributions of the nucleon. A range of kinematics accessible with an 11 GeV beam off an unpolarized proton target will be covered. The Q²- dependence of each contribution will be measured independently.
Rights
© 2023 The Authors.
Included with the kind written permission of the author.
Original Publication Citation
Berdnikov, V., Camsonne, A., Carmignotto, M., Ent, R., Grames, J., Higinbortham, D., Keppel, C., McCaughan, M., Paremuzyan, R., Sawatzky, B., Somov, A., Wojtsekhowski, B., Wood, S., Zorn, C., Dupré, R., Ehrhart, M., Guidal, M., Habet, S., Hobart, A.,…Ye, Z. (2023). Deeply Virtual Compton Scattering using a positron beam in Hall C (Report No. PR12+23-006). Thomas Jefferson National Accelerator Facility.
ORCID
0000-0001-7282-8120 (Hyde)
Repository Citation
Berdnikov, V.; Camsonne, A.; Carmignotto, M.; Ent, R.; Grames, J.; Higinbotham, D.; Keppel, C.; McCaughan, M.; Paremuzyan, P.; Sawatzky, B.; Somov, A.; Wojtsekhowski, B.; Wood, S.; Zorn, C.; Dupré, R.; Ehrhart, M.; Guidal, M.; Habet, S.; Hobart, A.; Marchand, D.; Muñoz Camacho, C.; Niccolai, S.; Voutier, E.; Mazouz, M.; Horn, T.; Kalicy, G.; Muhoza, M.; Pegg, I.; Trotta, R.; Asaturyan, A.; Mkrtchyan, A.; Mkrtchyan, H.; Tadevosyan, V.; Voskanyan, H.; Zhamkochyan, S.; Amaryan, M.; Hyde, C.; Kerver, M.; Murphy, J.; Roche, J.; Markowitz, P.; Afanasev, A.; Briscoe, W. J.; Strakovsky, I.; Boer, M.; Forest, T.; Annand, J.R.M.; Hamilton, D. J.; McKinnon, B.; Day, D.; Fernando, M. A. I.; Keller, D.; Rondon, R.; Zhang, J.; Brinkmann, K.; Diehl, S.; Novotny, R.; Gueye, P.; Bellini, V.; Dutta, D.; Kinney, E.; Nadel-Turonski, P.; Niculescu, G.; Sirca, S.; Albayrak, I.; Defurne, M.; Huang, Z.; and Ye, Z., "Deeply Virtual Compton Scattering Using a Positron Beam in Hall C" (2023). Physics Faculty Publications. 931.
https://digitalcommons.odu.edu/physics_fac_pubs/931
Comments
Jefferson Lab Positron Working Group Proposal.
Link to publisher landing page:
https://www.jlab.org/exp_prog/proposals/23prop.html