Precision Measurement of the Proton Elastic Cross Section at High Q
نویسندگان
چکیده
Using the base experimental equipment for Hall A, and beam energies of 6.6, 8.8, and 11 GeV, we propose to measure the proton elastic cross section to a statistical precision of better than 1% over a Q2 range of 7–17.5 GeV2. A few items of general purpose instrumentation are proposed to ensure that the total uncertainty will be below 2%. The resulting measurement will provide means for extracting the proton’s magnetic form factor and be the benchmark for future cross section measurements at high Q2. The experiment requests a total of 31 days for data taking, commissioning, and calibration. The experiment could be ready to run as soon as the high energy beam is available, and would be well suited to commissioning the upgraded beamline instrumentation for Hall A.
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