Vector screening masses in the quark–gluon plasma and their physical significance

Brandt, B.B.; Francis, A.; Laine, Mikko Sakari; Meyer, H.B. (2014). Vector screening masses in the quark–gluon plasma and their physical significance. Nuclear physics. A, 931, pp. 861-866. Elsevier 10.1016/j.nuclphysa.2014.09.071

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Static and non-static thermal screening states that couple to the conserved vector current are investigated in the high-temperature phase of QCD. Their masses and couplings to the current are determined at weak coupling, as well as using two-flavor lattice QCD simulations. A consistent picture emerges from the comparison, providing evidence that non-static Matsubara modes can indeed be treated perturbatively. We elaborate on the physical significance of the screening masses.

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