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arXiv · hep-ph/0610143

The logarithmic contribution to the QCD static energy at NNNNLO

Nora Brambilla·Xavier Garcia i Tormo·Joan Soto·Antonio Vairo
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Abstract

Using pNRQCD and known results for the field strength correlator, we calculate the ultrasoft contribution to the QCD static energy of a quark-antiquark pair at short distances at NNNNLO in alpha_s. At the same order, this provides the logarithmic terms of the singlet static potential in pNRQCD and the log alpha_s terms of the static energy.

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Nora Brambilla, Xavier Garcia i Tormo, Joan Soto, Antonio Vairo. 2007-02-09. The logarithmic contribution to the QCD static energy at NNNNLO. https://doi.org/10.1016/j.physletb.2007.02.015

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