Deeply Virtual Compton Scattering Beam-Spin Asymmetries
Journal Article
·
OSTI ID:922528
The beam spin asymmetries in the hard exclusive electroproduction of photons on the proton (ep -> epg) were measured over a wide kinematic range and with high statistical accuracy. These asymmetries result from the interference of the Bethe-Heitler process and of deeply virtual Compton scattering. Over the whole kinematic range (x_B from 0.11 to 0.58, Q^2 from 1 to 4.8 GeV^2, -t from 0.09 to 1.8 GeV^2), the azimuthal dependence of the asymmetries is compatible with expectations from leading-twist dominance, A = a*sin(phi)/[1+c*cos(phi)]. This extensive set of data can thus be used to constrain significantly the generalized parton distributions of the nucleon in the valence quark sector.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA
- Sponsoring Organization:
- USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 922528
- Report Number(s):
- JLAB-PHY-07-767; DOE/OR/23177-0294; arXiv:0711.4805
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries
Deeply Virtual Compton Scattering with CLAS
Deeply Virtual Compton Scattering at CLAS
Journal Article
·
Fri Apr 25 00:00:00 EDT 2008
· Physical Review Letters
·
OSTI ID:21128071
Deeply Virtual Compton Scattering with CLAS
Conference
·
Sun Dec 16 23:00:00 EST 2007
·
OSTI ID:921029
Deeply Virtual Compton Scattering at CLAS
Conference
·
Mon Sep 01 00:00:00 EDT 2008
·
OSTI ID:1996491