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Deeply Virtual Compton Scattering Using a Positron Beam in Hall-C at Jefferson Lab

Journal Article · · European Physical Journal. A
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  1. George Washington Univ., Washington, DC (United States)
  2. Akdeniz Universitesi, Antalya (Turkey)
  3. The Catholic Univ. of America, Washington, DC (United States)
  4. Old Dominion Univ., Norfolk, VA (United States)
  5. Univ. of Glasgow, Scotland (United Kingdom)
  6. A. Alikhanian Yerevan Institute of Physics, Yerevan (Armenia)
  7. Istituto Nazionale di Fisica Nucleare, Catania (Italy)
  8. Univ. of New Hampshire, Durham, NH (United States)
  9. Universitat Gießen Luwigstraße 23, Giessen (Germany)
  10. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  11. Univ. Paris-Saclay, Orsay (France)
  12. Univ. of Virginia, Charlottesville, VA (United States)
  13. Commissariat a l'Energie Atomique, Gif-sur-Yvette (France)
  14. Mississippi State Univ., Mississippi State, MS (United States)
  15. Hampton Univ., Hampton, VA (United States)
  16. Idaho State Univ., Pocatello, ID (United States)
  17. Michigan State Univ., East Lansing, MI (United States)
  18. Univ. of Colorado, Boulder, CO (United States)
  19. Florida International Univ. (FIU), Miami, FL (United States)
  20. Monastir Faculty of Science, Bitola (Tunisia)
  21. Ohio Univ., Athens, OH (United States)
  22. Stony Brook Univ., NY (United States)
  23. James Madison Univ., Harrisonburg, VA (United States)
  24. Univ. of Ljubljana (Slovenia)
+ Show Author Affiliations
In this study we propose to use the High Momentum Spectrometer of Hall C combined with the Neutral Particle Spectrometer (NPS) to perform high precision measurements 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 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 $$\mathcal{Q}^2$$-dependence of each contribution will be measured independently.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
1841672
Alternate ID(s):
OSTI ID: 23088680
Report Number(s):
DOE/OR/23177--5401; JLAB-PHY--21-3556
Journal Information:
European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 10 Vol. 57; ISSN 1434-6001
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (26)

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A glimpse of gluons through deeply virtual compton scattering on the proton collection January 2017

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS