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arXiv · 1605.03886

Leading and next to leading large $n_f$ terms in the cusp anomalous dimension and the quark-antiquark potential

Andrey Grozin
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Abstract

I discuss 3 related quantities: the cusp anomalous dimension, the HQET heavy-quark field anomalous dimension, and the quark-antiquark potential. Leading large $n_f$ terms can be calculated to all orders in $α_s$. Next to leading terms with the abelian color structure $C_F^2$ also can be found to all orders (but not non-abelian $C_F C_A$ terms). This talk is based on Appendices C and D in [arXiv:1510.07803].

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Andrey Grozin. 2016-05-30. Leading and next to leading large $n_f$ terms in the cusp anomalous dimension and the quark-antiquark potential. https://arxiv.org/abs/1605.03886

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