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Colourful Things the LHC Might See Early

Clifford Burgess, McMaster University / Perimeter Institute

 It is widely believed that existing electroweak data requires a Standard Model (SM) Higgs to be light, while electroweak and flavour physics constraints require other scalars charged under the SM gauge couplings to be heavy. New Higgs-like scalars that are also colour octets -- well-motivated in the sense that they arise in models having approximate custodial symmetry and minimal flavour violation -- provide counter-examples to both of these statements since the scalars can be all simultaneously light (~ 100 GeV} or heavy (~ 1 TeV}, without running afoul of direct searches and electroweak precision measurements.

Friday, 25 September, 2009 - 10:00
Seminar Location: 
Pavillon RJA Lévesque, salle 104

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