2015/02/09 by Aleksi Vuorinen, Yan Zhu, Vuorinen, Aleksi +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.1502.02556
25 pages, 5 figures. v2: Minor corrections in discussion and references
arxiv created 2015/02/10 · arxiv updated 2015/02/11
We revisit the determination of the two-loop spectral function in the shear channel of hot Yang-Mills theory. Correcting a technical error in an earlier computation and extending the result with a leading order Hard Thermal Loop resummation is seen to improve the infrared behavior of the quantity significantly. This makes it possible to straightforwardly use the result in the corresponding imaginary time correlator and the shear sum rule.