====== TTP05-01 Heavy Quarkonium Spectrum and Production/Annihilation Rates to order $\beta_0^3\alpha_s^3$ ====== We compute the third-order corrections to the heavy quarkonium spectrum and production/annihilation rates due to the leading renormalization group running of the static potential. The previously known complete ${\cal O}(m_q\alpha_s^5)$ result for the heavy quarkonium ground state energy is extended to the exited states. After including the ${\cal O}(\alpha_s^3)$ corrections the perturbative results are in surprisingly good agreement with the experimental data on the masses of the excited $\Upsilon$ resonances and the leptonic width of the $\Upsilon(1S)$ meson. The impact of the corrections on the $\Upsilon$ sum rules and top quark-antiquark threshold production cross section is also discussed. |**A.A. Penin, V.A. Smirnov, M. Steinhauser** | |** Nucl.Phys. B716 303-318 2005 ** | | {{preprints:2005:ttp05-01.pdf|PDF}} {{preprints:2005:ttp05-01.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0501042|arXiv]] | | |