Heavy Quarkonium
| dc.creator | Yndurain, F. J. | |
| dc.date | 1999-10-19 | |
| dc.date | 1999-10-28 | |
| dc.date.accessioned | 2026-07-07T04:08:25Z | |
| dc.date.available | 2026-07-07T04:08:25Z | |
| dc.description | Bound states of heavy $\bar{q}q$ quarks are reviewed within the context of QCD. First of all, we consider the calculations which can be performed {\sl ab initio}, which includes $\bar{t}t$ with principal quantum number $n$ up to four, $\bar{b}b$ states with $n=1$ and (to a lesser extent) $\bar{b}b$ with $n=2$ and $\bar{c}c$ for $n=1$. Among the results, we report a very precise $O(α_s^4)$ evaluation of $b, c$ quark masses from quarkonium spectrum with a potential to two loops, a calculation of the decay $Υ\to e^+e^-$ and a prediction for the splitting $Υ- η_b$. We then consider how, with the help of reasonable assumptions, one can extend QCD calculations to other states of heavy quarks. Finally, a few words are said on the treatment of light quark bound states. | |
| dc.description | Typos and other minor corrections. Plain TeX, with figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9910399 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9910399 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/49519 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Heavy Quarkonium | |
| dc.type | text |