The 34th International Symposium on Lattice Field Theory (Lattice 2016)

24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

Static and non-static vector screening masses

28 Jul 2016, 15:40
20m
Building 32 Room 1015 (Highfield Campus, University of Southampton)

Building 32 Room 1015

Highfield Campus, University of Southampton

Talk Nonzero Temperature and Density

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)

 Slides