The Minimal Set of Electroweak Precision Parameters

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dc.creatorCacciapaglia, G.
dc.creatorCsáki, C.
dc.creatorMarandella, G.
dc.creatorStrumia, A.
dc.date2006-04-12
dc.date.accessioned2026-07-07T10:45:01Z
dc.date.available2026-07-07T10:45:01Z
dc.descriptionWe present a simple method for analyzing the impact of precision electroweak data above and below the Z-peak on flavour-conserving heavy new physics. We find that experiments have probed about ten combinations of new physics effects, which to a good approximation can be condensed into the effective oblique parameters Shat, That, Uhat, V, X, W, Y (we prove positivity constraints W, Y >= 0) and three combinations of quark couplings (including a distinct parameter for the bottom). We apply our method to generic extra Z' vectors.
dc.description22 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0604111
dc.identifierhttp://arxiv.org/abs/hep-ph/0604111
dc.identifierPhys.Rev.D74:033011,2006
dc.identifierdoi:10.1103/PhysRevD.74.033011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182797
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Minimal Set of Electroweak Precision Parameters
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