Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

Study of charm and beauty in QGP from unquenched lattice QCD

Aug 10, 2022, 3:40 PM
CP1-HSZ/Ground-0.011 - HS1 (CP1-HSZ)

CP1-HSZ/Ground-0.011 - HS1


Oral Presentation QCD at Non-zero Temperature Non-zero Temperature


Sajid Ali (Bielefeld University Germany)


We present full QCD correlator data and corresponding reconstructed spectral functions in the pseudoscalar channel. Correlators are obtained using clover-improved Wilson fermions on $N_f=2+1$ HISQ lattices. We use gradient flow to check whether it reduces cut-off and mixed action effects. Valence quark masses are tuned to their physical values by comparing the mass spectrum obtained from the lattice QCD with experimental values at each flow time. For the spectral reconstruction, we use models based on perturbative spectral functions from different frequency regions like resummed thermal contributions around the threshold from pNRQCD and vacuum contributions well above the threshold. We show preliminary results of the reconstructed spectral function obtained for the first time in our study for full QCD. In addition, we compare the results with the previous continuum extrapolated results in the quenched approximation.

Primary authors

Dibyendu Bala (Bielefeld University) Luis Altenkort (Bielefeld University) Sajid Ali (Bielefeld University Germany) Hai-Tao Shu (Regensburg University) Olaf Kaczmarek (University of Bielefeld) Mr Tristan Ueding (Bielefeld University)

Presentation materials