Deeply virtual compton scattering off the neutron

Collaboration
Sep, 2007
5 pages
Published in:
  • Phys.Rev.Lett. 99 (2007) 242501
e-Print:
Report number:
  • JLAB-PHY-07-707
Experiments:

Citations per year

2007201220172022202505101520
Abstract: (arXiv)
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(e,eγ)X({\vec e},e'\gamma)X cross section measured at Q2Q^2=1.9 GeV2^2 and xBx_B=0.36. We extract a linear combination of generalized parton distributions (GPDs) particularly sensitive to EqE_q, the least constrained GPD. A model dependent constraint on the contribution of the up and down quarks to the nucleon spin is deduced.
Note:
  • Published in Phys. Rev. Lett
  • 13.85.Hd
  • 13.60.Fz
  • 25.30.-c
  • 14.20.Dh
  • electron deuteron: inelastic scattering
  • electron n: inelastic scattering
  • polarized beam: longitudinal
  • photon: emission
  • deeply virtual Compton scattering
  • interference: Bethe-Heitler
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