The Heavy Quarkonium Spectrum at Order $m{\alpha }_s^5\ln {\alpha }_s$

N. Brambilla, A. Pineda, J. Soto +1

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 $O(m{\alpha }_s^5)$ in…