An Update on the OLYMPUS Two-Photon Exchange Experiment at DESY

ORAL

Abstract

The OLYMPUS experiment seeks to provide a high-precision measurement ($<$1\% statistical error) of the positron-proton versus electron-proton elastic scattering cross-section ratio. Divergence from unity is attributed to two-photon exchange, predicted to be a few-percent effect in the kinematic region studied, $(0.6

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Authors

  • Colton O&#039;Connor

    MIT