The Status and Future of Color Transparency and Nuclear Filtering

Fourty years after its introduction, the phenomenon of color transparency remains a domain of controversial interpretations of experimental data. In this review, present evidence for or against color transparency manifestation in various exclusive hard scattering reactions is presented. The nuclear transparency experiments reveal whether short-distance processes dominate a scattering amplitude at some given kinematical point. We plead for a new round of nuclear transparency measurements in a variety of experimental set-ups, including near-forward exclusive reactions related to generalized parton distribution (GPD) physics and near-backward exclusive reactions related to transition distribution amplitudes (TDA) physics.

Automated summary

This review discusses the controversial interpretations of experimental data regarding the phenomenon of color transparency fourty years after its introduction. The presented evidence examines the manifestation of color transparency in various exclusive hard scattering reactions. The authors advocate for new nuclear transparency measurements in different experimental set-ups, including near-forward exclusive reactions related to generalized parton distribution (GPD) physics and near-backward exclusive reactions related to transition distribution amplitudes (TDA) physics.