Proton G_E/G_M from beam-target asymmetry
| dc.creator | Jones, M. K. | |
| dc.date | 2006-06-07 | |
| dc.date | 2006-09-08 | |
| dc.date.accessioned | 2026-07-07T11:59:58Z | |
| dc.date.available | 2026-07-07T11:59:58Z | |
| dc.description | The ratio of the proton's electric to magnetic form factor, G_E/G_M, can be extracted in elastic electron-proton scattering by measuring either cross sections, beam-target asymmetry or recoil polarization. Separate determinations of G_E/G_M by cross sections and recoil polarization observables disagree for Q^2 > 1 (GeV/c)^2. Measurement by a third technique might uncover an unknown systematic error in either of the previous measurements. The beam-target asymmetry has been measured for elastic electron-proton scattering at Q^2 = 1.51 (GeV/c)^2 for target spin orientation aligned perpendicular to the beam momentum direction. This is the largest Q^2 at which G_E/G_M has been determined by a beam-target asymmetry experiment. The result, \muG_E/G_M = 0.884 +/- 0.027 +/- 0.029, is compared to previous world data. | |
| dc.description | 8 pages, 6 figures, Updated to be version published in Physical Review C | |
| dc.identifier | https://arxiv.org/abs/nucl-ex/0606015 | |
| dc.identifier | http://arxiv.org/abs/nucl-ex/0606015 | |
| dc.identifier | Phys.Rev.C74:035201,2006 | |
| dc.identifier | doi:10.1103/PhysRevC.74.035201 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206751 | |
| dc.subject | Nuclear Experiment | |
| dc.title | Proton G_E/G_M from beam-target asymmetry | |
| dc.type | text |