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arXiv · 2009.06614

The nonperturbative contribution to asymptotic masses

Guy D. Moore·Niels Schlusser
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Abstract

In gauge theories, charged particles obey modified dispersion due to medium interactions (forward scattering), leading at high energies $E \geq T$ to an asymptotic mass-squared $m^2_\infty$. We calculate the infrared part of this mass nonperturbatively for the theory of the strong interactions, QCD, through a lattice treatment of its low-energy effective description, Electrostatic QCD (EQCD). Incorporation of these results into a nonperturbative determination of the effective thermal mass will require a still-incomplete next-to-leading order perturbative matching of this quantity to full QCD.

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Guy D. Moore, Niels Schlusser. 2020-09-14. The nonperturbative contribution to asymptotic masses. https://doi.org/10.1103/physrevd.102.094512

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