The 43rd International Symposium on Lattice Field Theory (Lattice 2026)

Lattice study of color-electric and magnetic masses in terms of center vortices

Not scheduled

20m

University of Maryland, College Park

Poster presentation QCD at nonzero temperature and density

Speaker

Yosuke Asano (Kochi University)

Description

We study color screening effects at finite temperatures using quenched $SU(2)$ lattice gauge simulations. We extract gluon electric and magnetic masses from long-range behavior of the gluon propagators on temperature regions $T=T_c\sim5T_c$. We also calculate them without nonperturbative effects by removing the center vortices on the lattice. As a result, we find that there is no distinction between both masses; this may mean that magnetic sector is more crucial than electric sector in quark-gluon plasma phase.