Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 8, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP08(2013)106
Keywords
LEP HERA and SLC Physics; Beyond Standard Model; Quark Masses and SM Parameters; Standard Model
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Funding
- MIUR (Italy)
- European Research Council under the European Union's Seventh Framework Programme (FP) / ERC Grant [279972, 267985]
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We perform the fit of electroweak precision observables within the Standard Model with a 126 GeV Higgs boson, compare the results with the theoretical predictions and discuss the impact of recent experimental and theoretical improvements. We introduce New Physics contributions in a model-independent way and fit for the S, T and U parameters, for the epsilon(1,2,3,b) ones, for modified Zb (b) over bar couplings and for a modified Higgs coupling to vector bosons. We point out that composite Higgs models are very strongly constrained. Finally, we compute the bounds on dimension-six operators relevant for the electroweak fit.
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