J an 2 00 5 TTP / 05 - 01 DESY 05 - 001 Heavy Quarkonium Spectrum and Production / Annihilation Rates to order β 30 α 3 s
نویسندگان
چکیده
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(m q α 5 s) result for the heavy quarkonium ground state energy is extended to the exited states. After including the O(α 3 s) corrections the perturbative results are in surprisingly good agreement with the experimental data on the masses of the excited Υ resonances and the leptonic width of the Υ(1S) meson. The impact of the corrections on the Υ sum rules and top quark-antiquark threshold production cross section is also discussed.
منابع مشابه
2 00 5 TTP / 05 - 01 SFB / CPP - 05 - 01 DESY 05 - 001 Heavy Quarkonium Spectrum and Production / Annihilation Rates to order β 30 α 3 s
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(m q α 5 s) result for the heavy quarkonium ground state energy is extended to the exited states. After including the O(α 3 s) corrections the perturbative results are in surprisingly go...
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