Abstract
We report the first precision measurement of the proton electric to magnetic form factor ratio from spin-dependent elastic scattering of longitudinally polarized electrons from a polarized hydrogen internal gas target. The measurement was performed at the MIT-Bates South Hall Ring over a range of four-momentum transfer squared Q2 from 0.15 to 0.65(GeV/c)2. Significantly improved results on the proton electric and magnetic form factors are obtained in combination with existing cross-section data on elastic electron-proton scattering in the same Q2 region.
Original language | English |
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Article number | 052301 |
Journal | Physical Review Letters |
Volume | 98 |
Issue number | 5 |
DOIs | |
State | Published - 2007 |
ASJC Scopus subject areas
- Physics and Astronomy (all)