The Bethe-Heitler Process in Polarized Photon-Nucleon Interactions
T. Gehrmann, M. Stratmann
Abstract
We calculate the Bethe-Heitler cross section for the production of lepton pairs in the field of a longitudinally polarized nucleon, taking into account the lepton masses and the target mass. This process is a dominant background to the detection of open charm from semi-leptonic decay modes, which is a potential probe of the polarized gluon distribution in the nucleon.
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