Electron-Positron Radiative Annihilation : Timelike Virtual Compton Scattering

TL;DR

This paper proposes a method to measure the deeply virtual Compton amplitude in the timelike domain using electron-positron colliders, enabling new insights into hadronic structure through radiative annihilation processes.

Contribution

It introduces a novel approach to access the timelike virtual Compton amplitude via electron-positron collider experiments, expanding the experimental toolkit for hadronic physics.

Findings

Proposes measurements of the DVCS amplitude in the timelike domain.

Connects the process to electron-positron collider experiments.

Provides a framework for future experimental investigations.

Abstract

We report on a recent work proposing measurements of the deeply virtual Compton amplitude (DVCS) $\gamma^* \to h \bar h \gamma$ in the timelike kinematic domain which is accessible at electron-positron colliders via the radiative annihilation process $e^+ e^- \to h \bar h \gamma$.