Measurement of the elastic e-p cross-sections at Q$^{\mathrm{2\thinspace }}=$ 0.66, 1.10, 1.51and 1.65 GeV$^{\mathrm{2}}$
ORAL
Abstract
The GMp experiment aims to improve the precision on the elastic e-p cross-sections measurement down to below 2{\%} with high momentum transfers Q$^{\mathrm{2\thinspace }}$up to 14 GeV$^{\mathrm{2}}$. The measurement will be critically important to be the benchmark for future cross section measurement at high Q$^{\mathrm{2}}$ and will be very useful to extract the proton's magnetic from factor. In the fall 2015, the GMp collaboration took data at four Q$^{\mathrm{2\thinspace }}$points of 0.66, 1.10, 1.51and 1.65 GeV$^{\mathrm{2\thinspace }}$and in the fall 2016, we plan to take data with Q$^{\mathrm{2}}$ up to 12 GeV$^{\mathrm{2}}$. The cross section measurements at the four low Q$^{\mathrm{2\thinspace }}$points will provide cross check with the existing world data. In this talk, the cross section analysis at the four low Q$^{\mathrm{2\thinspace }}$points will be presented.
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Authors
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Yang Wang
William & Mary Coll