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High Precision Measurement of Compton Scattering in the 5 GeV region

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arxiv 1903.05529 v5 pith:OAD5X44T submitted 2019-03-13 nucl-ex hep-phnucl-th

High Precision Measurement of Compton Scattering in the 5 GeV region

classification nucl-ex hep-phnucl-th
keywords beamcomptongammahighprecisionprimeregionscattering
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The cross section of atomic electron Compton scattering $\gamma + e \rightarrow \gamma^\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.

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