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arXiv · 1810.11031

S-wave heavy quarkonium spectrum with next-to-next-to-next-to-leading logarithmic accuracy

C. Anzai·D. Moreno·A. Pineda
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Abstract

We obtain the Potential NRQCD Lagrangian relevant for S-wave states with next-next-to-next-to-leading logarithmic (NNNLL) accuracy. We compute the heavy quarkonium mass of spin-averaged $l= 0$ (angular momentum) states, with otherwise arbitrary quantum numbers, with NNNLL accuracy. These results are complete up to a missing contribution of the two-loop soft running.

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C. Anzai, D. Moreno, A. Pineda. 2018-10-25. S-wave heavy quarkonium spectrum with next-to-next-to-next-to-leading logarithmic accuracy. https://doi.org/10.1103/physrevd.98.114034

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