Measurements of the neutron electric to magnetic form factor ratio GEn/GMn via the 2H(e→,e'n→)1H reaction to Q2=1.45 (GeV/c)2
Abstract
We report values for the neutron electric to magnetic form factor ratio, GEn/GMn, deduced from measurements of the neutron's recoil polarization in the quasielastic 2H(e→,e'n→)1H reaction, at three Q2 values of 0.45, 1.13, and 1.45 (GeV/c)2. The data at Q2=1.13 and 1.45 (GeV/c)2 are the first direct experimental measurements of GEn employing polarization degrees of freedom in the Q2>1 (GeV/c)2 region and stand as the most precise determinations of GEn for all values of Q2.
- Publication:
-
Physical Review C
- Pub Date:
- February 2006
- DOI:
- 10.1103/PhysRevC.73.025205
- arXiv:
- arXiv:nucl-ex/0511025
- Bibcode:
- 2006PhRvC..73b5205P
- Keywords:
-
- 14.20.Dh;
- 13.40.Gp;
- 25.30.Bf;
- 24.70.+s;
- Protons and neutrons;
- Electromagnetic form factors;
- Elastic electron scattering;
- Polarization phenomena in reactions;
- Nuclear Experiment
- E-Print:
- 41 pages, 33 figures, submitted to Phys. Rev. C, archival paper for R. Madey et al., Phys. Rev. Lett. 91, 122002 (2003)