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.
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D’Onofrio, M., Kurkela, A. & Moore, G.D. Renormalization of null Wilson lines in EQCD. J. High Energ. Phys. 2014, 125 (2014). https://doi.org/10.1007/JHEP03(2014)125
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DOI: https://doi.org/10.1007/JHEP03(2014)125