QCD Corrections to Radiative Upsilon Decays

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dc.creatorKrämer, Michael
dc.date1999-04-21
dc.date.accessioned2026-07-07T13:02:39Z
dc.date.available2026-07-07T13:02:39Z
dc.descriptionWe have calculated the next-to-leading order perturbative QCD corrections to the photon energy spectrum in radiative Upsilon decays. The higher-order corrections significantly modify the shape of the spectrum, in particular at large photon energies, and thereby reduce the discrepancy between experimental data and previous leading-order predictions. The next-to-leading order calculation of the photon energy spectrum allows a more reliable determination of the strong coupling constant from radiative Upsilon decays by restricting the analysis to the region of the energy spectrum that can be described by NLO perturbation theory.
dc.descriptionLatex, 8 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/9904416
dc.identifierhttp://arxiv.org/abs/hep-ph/9904416
dc.identifierPhys.Rev.D60:111503,1999
dc.identifierdoi:10.1103/PhysRevD.60.111503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226518
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQCD Corrections to Radiative Upsilon Decays
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