Speaker
Description
The work is focused on analyzing $J/\psi \rightarrow 4\pi_0 + \gamma$ decay reaction via partial-wave analysis on the Bes III experiment data. This analysis is relevant for the particle research due to the expected production of exotic resonances, in particular, glueballs. Glueballs are an important prediction of QCD, hypothetical particles consisting purely of gluons. The work covers all steps of reaction analysis: data selection and processing process, amplitude spin parts building in tensor angle momentum operators formalism and the fitting process via these amplitudes and Breit-Wigner formula. As a result, a good solution in terms of resonance parameters is achieved. To achieve the solution, it was necessary to insert additional resonances, which include ones presumably related to exotic states.
