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

Journal Article · Mon Oct 24 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3647111· OSTI ID:21608364

Moutarde, H ^[1]

---

1. CEA, Centre de Saclay, IRFU/Service de Physique Nucleaire, F-91191 Gif-sur-Yvette (France)

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.

• OSTI ID: 21608364
• Journal Information: AIP Conference Proceedings, Vol. 1374, Issue 1; Conference: MENU 2010: 12. international conference on meson-nucleon physics and the structure of the nucleon, Williamsburg, VA (United States), 31 May - 4 Jun 2010; Other Information: DOI: 10.1063/1.3647111; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ASYMMETRY
CEBAF ACCELERATOR
COMPARATIVE EVALUATIONS
COMPTON EFFECT
CROSS SECTIONS
ELECTROMAGNETIC FORM FACTORS
GLUONS
HELICITY
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE STRUCTURE
POLARIZATION
QUARKS
SPIN
ACCELERATORS
ANGULAR MOMENTUM
BASIC INTERACTIONS
BOSONS
DIMENSIONLESS NUMBERS
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
EVALUATION
FERMIONS
FORM FACTORS
INTERACTIONS
LINEAR ACCELERATORS
MEASURING INSTRUMENTS
PARTICLE PROPERTIES
SCATTERING
SPECTROMETERS