The Running Coulomb Potential and Lamb Shift in QCD

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dc.creatorHoang, Andre H.
dc.creatorManohar, Aneesh V.
dc.creatorStewart, Iain W.
dc.date2001-02-21
dc.date.accessioned2026-07-07T10:32:49Z
dc.date.available2026-07-07T10:32:49Z
dc.descriptionThe QCD beta-function and the anomalous dimensions for the Coulomb potential and the static potential first differ at three loop order. We evaluate the three loop ultrasoft anomalous dimension for the Coulomb potential and give the complete three loop running. Using this result, we calculate the leading logarithmic Lamb shift for a heavy quark-antiquark bound state, which includes all contributions to the binding energies of the form mα_s^4(α_s lnα_s)^k, k\ge 0.
dc.description25 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0102257
dc.identifierhttp://arxiv.org/abs/hep-ph/0102257
dc.identifierPhys.Rev.D64:014033,2001
dc.identifierdoi:10.1103/PhysRevD.64.014033
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178888
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Running Coulomb Potential and Lamb Shift in QCD
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