Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio toQ2=8.5  GeV2 (original) (raw)

2010, Physical Review Letters

AI-generated Abstract

The electromagnetic form factors of the proton play a crucial role in understanding its internal structure through elastic electron-nucleon scattering experiments. This thesis presents new recoil polarization measurements of the ratio of the electric and magnetic form factors, GpE/GpM, at high momentum transfers of Q^2 = 5.2, 6.7, and 8.5 GeV^2. By utilizing a polarized electron beam on a liquid hydrogen target and analyzing the recoil protons, the study reports enhanced sensitivity in measuring the form factor ratio, thereby contributing valuable data for nuclear physics and helping to refine models of nucleon structure.