Radiative Corrections to $γγ\to t \bar t$ in the Electroweak Standard Model

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dc.creatorDenner, A.
dc.creatorDittmaier, S.
dc.creatorStrobel, M.
dc.date1995-07-21
dc.date.accessioned2026-07-07T10:58:10Z
dc.date.available2026-07-07T10:58:10Z
dc.descriptionThe cross-section for $γγ\to t \bar t$ with arbitrary polarized photons is calculated within the electroweak Standard Model including the complete virtual and soft-photonic $O(α)$ corrections. We present a detailed numerical discussion of the radiative corrections with particular emphasis on the purely weak corrections. These are usually of the order of 1--10\% for energies up to 1 TeV. For unpolarized or equally polarized photons they reach almost 10\% close to threshold. The large corrections cannot be traced back to a universal origin like the running of $α$ or the $ρ$-parameter. Apart from the energy region around the Higgs resonance $(γγ\to H^*\to t\bar t)$ the weak corrections are widely independent of the Higgs-boson mass.
dc.description22 pages, LaTeX (compressed, uuencoded), 20 figures as compressed uuencoded ps-files, complete ps-file available via anonymous ftp from ftp://ftp.physik.uni-wuerzburg.de/pub/preprint/WUE-ITP-95-017.ps
dc.identifierhttps://arxiv.org/abs/hep-ph/9507372
dc.identifierhttp://arxiv.org/abs/hep-ph/9507372
dc.identifierPhys.Rev.D53:44-54,1996
dc.identifierdoi:10.1103/PhysRevD.53.44
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187002
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRadiative Corrections to $γγ\to t \bar t$ in the Electroweak Standard Model
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