Application of High Quality Antiproton Beam with Momentum Ranging from 1 GeV/c to 15 GeV/c to Study Charmonium and Charmed Hybrids

TL;DR

This paper discusses using a high-quality antiproton beam with momenta from 1 to 15 GeV/c to analyze charmonium and hybrid states, proposing a combined theoretical approach and emphasizing the need for more experimental data.

Contribution

It introduces a combined potential and relativistic model approach for analyzing charmonium spectra and highlights the potential of the PANDA experiment to provide necessary decay data.

Findings

Analysis of existing experimental data on charmonium states

Identification of new states with hidden charm

Proposal for future experiments with high-quality antiproton beams

Abstract

The elaborate analysis of spectrum of charmonium states and charmed hybrids in the mass region over DD-threshold is given. The combined approach based on the potential model and relativistic spherical symmetric top model for decay products has been proposed. The experimental data from different collaborations were analyzed. Especial attention was given to the new states with the hidden charm discovered recently. Eight of these states may be interpreted as higher laying radial excited charmoniumstates. Butmuchmore data on different decay modes are needed for deeper analysis. These data can be derived directly from the experiments using high quality antiproton beam with the momentum ranging from 1 GeV/c to 15 GeV/c (PANDA experiment at FAIR).