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arXiv · hep-ph/9910238

The Heavy Quarkonium Spectrum at Order $mα_s^5 \ln α_s$

N. Brambilla·A. Pineda·J. Soto·A. Vairo
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Abstract

We compute the complete leading-log terms of the next-to-next-to-next-to-leading-order corrections to potential NRQCD. As a by-product we obtain the leading logs at $O(mα_s^5)$ in the heavy quarkonium spectrum. These leading logs, when $Λ_{QCD} \ll mα_s^2$, give the complete $O(mα_s^5 \ln α_s)$ corrections to the heavy quarkonium spectrum.

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N. Brambilla, A. Pineda, J. Soto, A. Vairo. 1999-11-19. The Heavy Quarkonium Spectrum at Order $mα_s^5 \ln α_s$. https://doi.org/10.1016/s0370-2693(99)01301-5

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