Charge Symmetry at the Partonic Level

Understand

This review article discusses the experimental and theoretical status of partonic charge symmetry.

• It is shown how the partonic content of various structure functions gets redefined when the assumption of charge symmetry is relaxed.
• We review various theoretical and phenomenological models for charge symmetry violation in parton distribution functions.
• We summarize the current experimental upper limits on charge symmetry violation in parton distributions.