On Third-Order Timelike Splitting Functions and Top-Mediated Higgs Decay into Hadrons

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dc.creatorMoch, S.
dc.creatorVogt, A.
dc.date2007-09-25
dc.date.accessioned2026-07-07T11:37:28Z
dc.date.available2026-07-07T11:37:28Z
dc.descriptionWe employ relations between spacelike and timelike deep-inelastic processes in perturbative QCD to calculate the next-to-next-to-leading order (NNLO) contributions to the timelike quark-quark and gluon-gluon splitting functions for the evolution of flavour-singlet fragmentation distributions. We briefly address the end-point behaviour and the numerical size of these third-order corrections, and write down the second moments of all four timelike splitting functions. In the same manner we re-derive the NNLO result for the Higgs-boson decay rate into hadrons in the limit of a heavy top quark and five massless flavours, and confirm the recent N^3LO computation of this quantity.
dc.description10 pages, LaTeX, 2 eps-figures
dc.identifierhttps://arxiv.org/abs/0709.3899
dc.identifierhttp://arxiv.org/abs/0709.3899
dc.identifierPhys.Lett.B659:290-296,2008
dc.identifierdoi:10.1016/j.physletb.2007.10.069
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199214
dc.subjectHigh Energy Physics - Phenomenology
dc.titleOn Third-Order Timelike Splitting Functions and Top-Mediated Higgs Decay into Hadrons
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