Proton electromagnetic form factor ratio at high momentum transfer via recoil polarization in Hall C at Jefferson Lab

Experiment E04-108 in Hall C at Jefferson Lab measured the ratio of the proton's electric ($G_E$) and magnetic ($G_M$) form factors using the recoil polarization technique at three different values of squared four-momentum transfer $Q^2$--5.2, 6.8, and 8.5 GeV$^2$. Data taking was completed in June 2008, and analysis of the data is underway. Two new detectors were built by the collaboration to carry out this experiment. A large solid-angle electromagnetic calorimeter was used to detect elastically scattered electrons in coincidence with scattered protons detected by the Hall C High Momentum Spectrometer (HMS). The calorimeter allowed a clean rejection of the significant inelastic backgrounds present at such high $Q^2$. A new Focal Plane Polarimeter (FPP) was installed in the HMS detector hut to measure the polarization of the scattered proton. After a brief overview of the experiment, the present status of the analysis will be discussed.