The nonperturbative contribution to asymptotic masses

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http://hdl.handle.net/10138/322442

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Moore , G D & Schlusser , N 2020 , ' The nonperturbative contribution to asymptotic masses ' , Physical Review D , vol. 102 , no. 9 , 094512 . https://doi.org/10.1103/PhysRevD.102.094512

Title: The nonperturbative contribution to asymptotic masses
Author: Moore, Guy D.; Schlusser, Niels
Contributor: University of Helsinki, Particle Physics and Astrophysics
Date: 2020-11-17
Language: eng
Number of pages: 12
Belongs to series: Physical Review D
ISSN: 2470-0010
URI: http://hdl.handle.net/10138/322442
Abstract: In gauge theories, charged particles obey modified dispersion due to medium interactions (forward scattering), leading at high energies E >= T to an asymptotic mass-squared m(infinity)(2). 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. 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.
Subject: 114 Physical sciences
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