# Dielectron production in pion-nucleon reactions and form factor of baryon transition within the time-like region

## TL;DR

This paper investigates dielectron production in pion-nucleon reactions at energies below 1 GeV, focusing on the virtual photon process and the baryon transition form factor in the time-like region.

## Contribution

It provides theoretical predictions for dielectron mass and angular distributions and discusses how to extract the baryon transition form factor from future experimental data.

## Key findings

- Predicted dielectron effective mass distributions
- Angular dependence of dielectron production
- Method for extracting baryon transition form factor

## Abstract

Dielectron production in reactions $\pi^- p \rightarrow n e^+e^-$ and $\pi^- p \rightarrow n e^+e^- \gamma$ at energies less than 1 GeV is studied assuming electron-positron pair production to occur in the virtual time-like photon splitting process. Theoretical predictions of the effective mass distribution of dielectrons and their angular dependence are presented. Extraction of the electromagnetic form factor of baryon transition in the time-like region from future experiments of the HADES Collaboration is discussed.