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preprints:2010:ttp10-04 [2016/03/17 11:03] (current)
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 +====== TTP10-04 Higgs Pseudo-Observables,​ Second Riemann Sheet and All That ====== 
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 +   <​hidden TTP10-04 ​ Higgs Pseudo-Observables,​ Second Riemann Sheet and All That > The relation between physical observables measured at LHC and Tevatron and standard model Higgs pseudo-observables (production cross section and partial decay widths) is revised by extensively using the notion of the Higgs complex pole on the second Riemann sheet of the $S $-matrix. The extension of their definition to higher orders is considered, confronting the problems that arise when QED(QCD) corrections are included in computing realistic observables. Numerical results are presented for pseudo-observables related to the standard model Higgs boson decay and production. The relevance of the result for exclusion plots of the standard model Higgs boson for high masses (up to $600 $GeV) is discussed. Furthermore,​ a recipe for the analytical continuation of Feynman loop integrals from real to complex internal masses and complex Mandelstam invariants is thoroughly discussed. 
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 +|**Giampiero Passarino, Christian Sturm, Sandro Uccirati** ​ |  
 +|** Nucl.Phys. B834 77-115 2010  **  | 
 +| {{preprints:​2010:​ttp10-04.pdf|PDF}} {{preprints:​2010:​ttp10-04.ps|PostScript}} [[http://​arxiv.org/​abs/​1001.3360|arXiv]] ​  | 
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