Fermion Virtual Effects in $e^+ e^- -> W^+ W^-$ Cross Section

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dc.creatorCulatti, A.
dc.creatorDegrassi, G.
dc.creatorFeruglio, F.
dc.creatorMasiero, A.
dc.creatorRigolin, S.
dc.creatorSilvestrini, L.
dc.creatorVicini, A.
dc.date1996-05-28
dc.date.accessioned2026-07-07T03:59:20Z
dc.date.available2026-07-07T03:59:20Z
dc.descriptionWe analyse the contribution of new heavy virtual fermions to the $e^+e^- \rightarrow W^+W^-$ cross section. We find that there exists a relevant interplay between trilinear and bilinear oblique corrections. The result strongly depends on the chiral or vector--like nature of the new fermions. As for the chiral case we consider sequential fermions: one obtains substantial deviation from the Standard model prediction, making the effect possibly detectable at $\sqrt{s}=500$ or $1000$ GeV linear colliders. As an example for the vector--like case we take a SUSY extension with heavy charginos and neutralinos: due to cancellation, the final effect turns out to be negligible.
dc.descriptionuuencoded, gz-compressed, tar-ed file. 8 pages, 4 EPS figures, uses EPSFIG.STY
dc.identifierhttps://arxiv.org/abs/hep-ph/9605415
dc.identifierhttp://arxiv.org/abs/hep-ph/9605415
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/46179
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFermion Virtual Effects in $e^+ e^- -> W^+ W^-$ Cross Section
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