Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9854972 | Nuclear Physics B | 2005 | 16 Pages |
Abstract
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 O(mqαs5) result for the heavy quarkonium ground state energy is extended to the exited states. After including the O(αs3) corrections the perturbative results are in surprisingly good agreement with the experimental data on the masses of the excited Ï resonances and the leptonic width of the Ï(1S) meson. The impact of the corrections on the Ï sum rules and top quark-antiquark threshold production cross section is also discussed.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
A.A. Penin, V.A. Smirnov, M. Steinhauser,