Celebration of Scholarship and Creative Activity 2022
The Antiproton Annihilation at Darmstadt (PANDA) fixed-target particle experiment in Germany consists of the High Energy Storage Ring (HESR) and the PANDA particle physics detector. Anti-protons (p bar) circulating in the HESR strike essentially fixed protons (p) within the PANDA detector. Beam energies are selected such that these collisions produce charmonium (c cbar) particles, which quickly decay to lighter particles. The PANDA detector uses a sophisticated set of tracking chambers and particle-identification subdetectors to (1) measure the momenta and energies of all final-state particles, and (2) reconstruct charmonium decay chains. This poster presents initial Monte Carlo studies of the charmonium formation and decay process, p pbar → ψ(1S) → e+ e- and μ+ μ-, to test the PandaRoot software framework and evaluate PANDA detector performance. Special attention is given to the electromagnetic calorimeter and muon detection system. Detailed large-sample charmonium studies provide sensitive tests of Quantum Chromodynamics (QCD), the current most-productive model of the strong interaction. The PANDA experiment is currently under construction at the Facility for Antiproton and Ion Research (FAIR). Authors (alphabetically): Olivia Mativi (UW Oshkosh); Dr. Mark Lattery (UW Oshkosh), and Dr. Sean Dobbs (Florida State University). Funded in part by the U.S. Department of Education TRIO program.