Extraction of the Compton Form Factor H from DVCS Measurements in the Quark Sector

Conference · Sat Oct 01 00:00:00 EDT 2011

DOI:https://doi.org/10.1063/1.3647111· OSTI ID:1028821

Moutarde, H

Working at twist 2 accuracy and assuming the dominance of the Generalized Parton Distribution H we study the helicity-dependent and independent cross sections measured in Hall A, the beam spin asymmetries measured in Hall B at Jefferson Laboratory and beam charge, beam spin and target spin asymmetries measured by Hermes. We extract the real and imaginary parts of the Compton Form Factor H, the latter being obtained with a 20-50% uncertainty. We pay extra attention to the estimation of systematic errors on the extraction of H. We discuss our results and compare to other extractions as well as to the popular VGG model.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1028821
• Report Number(s): JLAB-PHY-11-1443; DOE/OR/23177-1887; arXiv:1010.4521; TRN: US1105511
• Resource Relation: Conference: MENU 2010, 31 May - 4 Jun 2010, Williamsburg, Virginia.
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCURACY
CEBAF ACCELERATOR
CROSS SECTIONS
DISTRIBUTION
FORM FACTORS
QUARKS
SPIN
TARGETS