Main Image
Volume 256 - 34th annual International Symposium on Lattice Field Theory (LATTICE2016) - Nonzero Temperature and Density
Static and non-static vector screening masses
B. Brandt, A. Francis, H.B. Meyer, A. Steinberg,* K. Zapp
*corresponding author
Full text: pdf
Pre-published on: 2017 January 30
Published on: 2017 March 24
Thermal screening masses of the conserved vector current are calculated both in a weak-coupling approach and in lattice QCD. 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 both 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 (2πT), in agreement with the O(g2) weak-coupling prediction.
Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.