We present measurements of the ratio of the proton elastic electromagnetic form factors, mu (p)G(Ep)/G(Mp). The Jefferson Lab Hall A Focal Plane Polarimeter was used to determine the longitudinal and transverse components of the recoil proton polarization in ep elastic scattering; the ratio of these polarization components is proportional to the ratio of the two for-in factors. These data reproduce the observation of Jones et al. [Phys, Rev. Lett. 84, 1398 (2000)], that the form factor ratio decreases significantly from unity above Q(2) = 1 GeV2.
Physical Review C
Copyright 2001 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevC.64.038202.
Gayou, O.; Kooijman, Edgar E; The Jefferson Lab Hall A Collaboration (2001). Measurements of the Elastic Electromagnetic Form Factor Ratio Mu(P)G(Ep)/G(Mp) Via Polarization Transfer. Physical Review C 64(3) 038202-1-038202-4. doi: 10.1103/PhysRevC.64.038202. Retrieved from https://oaks.kent.edu/bscipubs/11