Journal article

Deeply virtual Compton scattering using a positron beam in Hall-C at Jefferson Lab


Authors listAfanasev, A.; Albayrak, I; Ali, S.; Amaryan, M.; Annand, J. R. M.; Asaturyan, A.; Bellini, V; Berdnikov, V. V.; Boer, M.; Brinkmann, K.; Briscoe, W. J.; Camsonne, A.; Caudron, M.; Causse, L.; Carmignotto, M.; Day, D.; Defurne, M.; Diehl, S.; Ent, R.; Chatagnon, P.; Dupre, R.; Dutta, D.; Ehrhart, M.; Fernando, M. A., I; Forest, T.; Guidal, M.; Grames, J.; Gueye, P.; Habet, S.; Hamilton, D. J.; Hobart, A.; Horn, T.; Hyde, C.; Kalicy, G.; Keller, D.; Keppel, C.; Kerver, M.; Kinney, E.; Ko, H-S; Marchand, D.; Markowitze, P.; Mazouz, M.; McCaughan, M.; McKinnon, B.; Mkrtchyan, A.; Mkrtchyan, H.; Muhoza, M.; Camacho, C. Munoz; Murphy, J.; Nadel-Turonski, P.; Niccolai, S.; Niculescu, G.; Novotny, R.; Paremuzyan, R.; Pegg, I; Price, K.; Rashad, H.; Roche, J.; Rondon, R.; Sawatzky, B.; Sergeyeva, V; Sirca, S.; Somov, A.; Strakovsky, I; Tadevosyan, V; Trotta, R.; Voskanyan, H.; Voutier, E.; Wojtsekhowski, B.; Wood, S.; Zhamkochyan, S.; Zhang, J.; Zhao, S.; Zorn, C.

Publication year2021

JournalThe European Physical Journal A

Volume number57

Issue number10

ISSN1434-6001

eISSN1434-601X

Open access statusGreen

DOI Linkhttps://doi.org/10.1140/epja/s10050-021-00581-x

PublisherSpringer


Abstract
We propose to use the High Momentum Spectrometer of Hall C combined with the Neutral Particle Spectrometer (NPS) to perform high precision measurements of theDeeplyVirtual Compton Scattering (DVCS) cross section using a beam of positrons. The combination ofmeasurements with oppositely charged incident beams is the only unambiguous way to disentangle the contribution of the DVCS2 term in the photon electroproduction cross section from its interference with the Bethe-Heitler amplitude. This provides a stronger way to constrain the Generalized Parton Distributions of the nucleon. A wide range of kinematics accessible with an 11 GeV beam off an unpolarized proton target will be covered. The Q(2)-dependence of each contribution will be measured independently.



Citation Styles

Harvard Citation styleAfanasev, A., Albayrak, I., Ali, S., Amaryan, M., Annand, J., Asaturyan, A., et al. (2021) Deeply virtual Compton scattering using a positron beam in Hall-C at Jefferson Lab, The European Physical Journal A, 57(10), Article 300. https://doi.org/10.1140/epja/s10050-021-00581-x

APA Citation styleAfanasev, A., Albayrak, I., Ali, S., Amaryan, M., Annand, J., Asaturyan, A., Bellini, V., Berdnikov, V., Boer, M., Brinkmann, K., Briscoe, W., Camsonne, A., Caudron, M., Causse, L., Carmignotto, M., Day, D., Defurne, M., Diehl, S., Ent, R., ...Zorn, C. (2021). Deeply virtual Compton scattering using a positron beam in Hall-C at Jefferson Lab. The European Physical Journal A. 57(10), Article 300. https://doi.org/10.1140/epja/s10050-021-00581-x


Last updated on 2025-10-06 at 11:32