High Precision Measurement of Compton Scattering in the 5 GeV region
arXiv:1903.05529 · doi:10.1016/j.physletb.2019.134884
Abstract
The cross section of atomic electron Compton scattering $γ+ e \rightarrow γ^\prime + e^\prime $ was measured in the 4.40--5.475 GeV photon beam energy region by the {\em PrimEx} collaboration at Jefferson Lab with an accuracy of 2\% and less. The results are consistent with theoretical predictions that include next-to-leading order radiative corrections. The measurements provide the first high precision test of this elementary QED process at beam energies greater than 0.1 GeV.
6 pages, 4 figures