Speaker
Description
We report on the progress of our calculation of the $1^{-+}$ exotic charmonium hybrid state at finite temperature using anisotropic FASTSUM ensembles. Using a wide basis of operators proposed by the Hadron Spectrum Collaboration together with optimal distillation profiles, we extend our existing spectrum results at different temperatures below and above $T_c$ to include zero-temperature ones. The use of distillation profiles allows us to circumvent the limitation in number of operators brought by finite temperature at very little additional cost. Finally, we use the zero-temperature results to study the change of the spectral function of the hybrid via the reconstructed correlator method, improving on our previously presented results which were still affected by unwanted finite-temperature systematic effects.