Precision Measurement of the Proton Elastic Cross-Section at High $\rm Q^{2}$

Elastic electromagnetic form factors characterize the distribution of electric charge and magnetization current inside the nucleon and thus reflect the internal structure determined by Quantum Chromodynamics. Existing data on the proton magnetic form factor at high $\rm Q^{2}$ have large statistical and systematic uncertainties. The GMp experiment E12-07-108 was one of the first set of experiments to run in Hall A at Jefferson Lab after the 12 $\rm GeV$ upgrade with the goal to precisely measure the electron-proton elastic cross section in the $\rm Q^{2}$ range of 7 to 17 $\rm GeV^{2}$ with an accuracy of better than 2% - several times better than existing data at this $\rm Q^{2}$ range. This will allow further tests of form factor scaling predicted by pQCD and, additionally, will be an important benchmark for many other experiments where elastic electron-proton scattering is used for normalization. The new 12 GeV beamline in Hall A, with main instrumentation consisting of beam charge and position monitors, was commissioned during the Fall of 2016. In addition, production data at energies 2,4,6,8 and 11 GeV were taken. In this talk, the preliminary results of cross-section study within 3% will be presented.