$\chi_{c1}$ and $\chi_{c2}$ production at $e^+e^-$ colliders

TL;DR

This paper investigates the potential for direct production of $_{c1}$ and $_{c2}$ charmonium states in electron-positron collisions, highlighting model-dependent cross section predictions and the possibility of observing resonant production.

Contribution

It provides a theoretical analysis of resonant production of $_{c1}$ and $_{c2}$ states in $e^+e^-$ colliders, emphasizing the variability based on different models.

Findings

Production cross section varies significantly with model assumptions.

Resonant production could be detectable under favorable experimental conditions.

The study suggests potential observability of $_{c1}$ and $_{c2}$ states in future collider experiments.

Abstract

Direct, resonant production of the charmonium states $\chi_{c1}$ and $\chi_{c2}$ in electron-positron annihilation is investigated. Depending on details of the model, a sizeable variation of the prediction for the production cross section is anticipated. It is demonstrated that resonant production could be observed under favorable circumstances.