Document Type

Article

Publication Date

12-10-2007

Abstract

The present experiment exploits the interference between the deeply virtual Compton scattering (DVCS) and the Bethe-Heitler processes to extract the imaginary part of DVCS amplitudes on the neutron and on the deuteron from the helicity-dependent D(e⃗,eγ)X cross section measured at Q2=1.9  GeV2 and xB=0.36. We extract a linear combination of generalized parton distributions (GPDs) particularly sensitive to Eq, the least constrained GPD. A model dependent constraint on the contribution of the up and down quarks to the nucleon spin is deduced.

DOI

10.1103/PhysRevLett.99.242501

Version

Publisher's PDF

Comments

© 2007 The American Physical Society. The original publication is available at http://link.aps.org/doi/10.1103/PhysRevLett.99.242501

Original Citation

Phys. Rev. Lett. 99, 242501 (2007)

Included in

Physics Commons

Share

COinS