Speaker
Mr
Aman Steinberg
(Uni Mainz)
Description
Thermal screening masses associated to the conserved vector current are calculated both in a weak-coupling and a lattice QCD approach. The inverse of a screening mass can be understood as the length scale over which an external electric field is screened in a QCD medium. The comparison of screening masses in the zero and non-zero Matsubara frequency sectors shows good agreement of the perturbative and the lattice results. Moreover, at *T* ≈ 508MeV the lightest screening mass lies above the free result $(2n\pi T)$, in agreement with the $\mathcal{O}(g^2)$ weak-coupling prediction, whereas this was not the case in a previous study at *T* ≈ 254MeV.
Primary authors
Mr
Aman Steinberg
(Uni Mainz)
Dr
Anthony Francis
(York University)
Dr
Bastian Brandt
(University of Frankfurt)
Prof.
Harvey B. Meyer
(Uni Mainz)
Mr
Kai Zapp
(Uni Mainz)
