Measurement of GEp/GMp in e-->p --> ep--> to Q2 = 5.6 GeV2
Abstract
The ratio of the electric and magnetic form factors of the proton GEp/GMp, which is an image of its charge and magnetization distributions, was measured at the Thomas Jefferson National Accelerator Facility (JLab) using the recoil polarization technique. The ratio of the form factors is directly proportional to the ratio of the transverse to longitudinal components of the polarization of the recoil proton in the elastic e-->p-->ep--> reaction. The new data presented span the range 3.5<Q2<5.6 GeV2 and are well described by a linear Q2 fit. Also, the ratio (Q2) F2p/F1p reaches a constant value above Q2 = 2 GeV2.
- Publication:
-
Physical Review Letters
- Pub Date:
- March 2002
- DOI:
- 10.1103/PhysRevLett.88.092301
- arXiv:
- arXiv:nucl-ex/0111010
- Bibcode:
- 2002PhRvL..88i2301G
- Keywords:
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- Nuclear Experiment
- E-Print:
- 6 pages, 4 figures Added two names to the main author list