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SUMMARY:Higgs pseudo-observables - David Marzocca (Zurich)
DTSTART:20150515T150000Z
DTEND:20150515T160000Z
UID:TALK59176@talks.cam.ac.uk
CONTACT:Damien George
DESCRIPTION:We introduce a set of pseudo-observables (PO)\, defined from t
 he on-shell amplitudes\, characterising the properties of Higgs decays in 
 generic extensions of the Standard Model with no new particles below the H
 iggs mass. These provide a systematic generalisation of the kappa framewor
 k used by the LHC experiments. The PO allow for a systematic inclusion of 
 radiative corrections. Symmetries of the new-physics sector\, such as CP i
 nvariance\, lepton-universality\, and custodial symmetry\, imply relations
  among the PO\, which could be tested directly from Higgs data. The Higgs 
 PO can be matched to any effective theory\, in particular assuming the lin
 ear EFT allows to derive strong predictions —due to LEP bounds— which 
 can be tested by Higgs data.
LOCATION:Seminar Room B\, Rutherford Building\, Cavendish Laboratory
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