Publication Title

Physical Review C

Publication Date

9-2001

Document Type

Article

DOI

10.1103/PhysRevC.64.038202

Keywords

electron scattering, proton

Disciplines

Physics

Abstract

We present measurements of the ratio of the proton elastic electromagnetic form factors, μpGEp/GMp. 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 form 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 Q2=1GeV2.

Comments

Copyright 2001 American Physical Society. Available on publisher's site at http://dx.doi.org/10.1103/PhysRevC.64.038202.


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