Theory Seminar

Understanding Heavy QuarkAntiQuark System by Perturbative QCD

Start:2015/04/28 (Tue) 11:00 AM
End:2015/04/28 (Tue) 12:00 PM
Location:Kenkyu Honkan 1F meeting room 1

Speaker:ProF. Yukinari Sumino (Tohoku University)
Contact:Ryosuke Sato,


Due to the discovery of renormalon cancellation, it
became possible to describe the nature of a heavy
system (such as bottomonium) based
on perturbative QCD, both qualitatively and
quantitatively. Accordingly, interpretaions of the heavy
quark mass and interquark force have been modified
considerably. I overview what has been understood and
some of theoretical progress since then. The UV part of
the interquark potential can be computed in perturbative
QCD. We show that a "Coulomb+linear" potential is
obtained as the prediction.

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