New results on the electric form factor of the proton
The longitudinal, P, and transverse, Pt, polarizations of the recoil proton were measured for the elastic p reaction in Hall A at JLab. The ratio of the electric, GEp, to the magnetic, GMp, form factors of the proton was obtained from the ratio Pt/P. Using this technique, an earlier experiment [1] in Hall A at JLab measured GEp/GMp for the four-momentum transferred, Q2, from 0.5 to 3.5 GeV2 and found that above Q2 0.8 GeV2 the ratio falls off linearly with Q2. New data presented here extend the measurement of GEp/GMp to Q2 = 5.6 GeV2 and shows that it continues to fall linearly with Q2.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 838349
- Report Number(s):
- JLAB-PHY-01-83; DOE/ER/40150-3250
- Country of Publication:
- United States
- Language:
- English
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