TA-DPG-2019-015

One of the most interesting fields in modern high energy physics is
the experimental study of quantum chromodynamics. The PANDA-
experiment at FAIR aims to explore this field by probing hadrons with
unprecedented precision and sensitivity. It will use proton-antiproton
collisions to reach center-of-mass energies of up to 5.5 GeV. Combined
with a high luminosity, this will make the detection of exotic resonances
with tiny cross sections feasible. In order to support the experiment
with simulations, the software framework PANDARoot was developed.
In this talk, the reconstruction of a hybrid candidate in the charmo-
nium sector with PANDARoot will be presented. The decay channel
involving the hybrid candidate ultimately decays into seven photons,
which makes it an excellent candidate to evaluate the performance of
the electromagnetic calorimeter. While seven photons already create
immense combinatorical background within the signal channel, there
exist at least four background channels with a very similar decay pat-
tern. Hence it is important to maximize the statistical significance of
the signal. For this, different optimization algorithms were evaluated,
where a genetic algorithm was found to be the most suitable one. Its
features and performance will be discussed. This project is supported
by BMBF and HIC for Fair.