arXiv:1401.7951·v1·High Energy Physics — Lattice
Renormalization of Null Wilson Lines in EQCD
Michela D'Onofrio🇫🇮 · Aleksi Kurkela🇨🇦 · Guy D. Moore🇨🇦
Abstract
Radiation and energy loss of a light, high-energy parton in a perturbative Quark-Gluon Plasma is controlled by transverse momentum exchange. The troublesome infrared contributions to transverse momentum exchange can be computed on the lattice using dimensional reduction to EQCD. However a novel extended operator, the Null Wilson Line of EQCD, is involved. We compute the renormalization properties of this object's lattice implementation to next-to-leading order, which should facilitate its efficient calculation on the lattice.
Comments: 13 pages, 2 figures