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SUMMARY:Is SMEFT enough? - Dave Sutherland (SISSA\, Trieste)
DTSTART:20201112T160000Z
DTEND:20201112T170000Z
UID:TALK152260@talks.cam.ac.uk
CONTACT:Joseph Davighi
DESCRIPTION:*The seminar will take place via vidyo "here":https://indico.c
 ern.ch/event/973730/.\nThe explicit url is: https://indico.cern.ch/event/9
 73730/.*\n\nAbstract: The four scalar degrees of freedom of the Standard M
 odel\, the Higgs and the longitudinal components of the Ws and Z\, are ame
 nable to different EFT descriptions. "SMEFT" wraps them up in a single Hig
 gs doublet\, whereas "HEFT" treats the Higgs and the Goldstones separately
 .\nWe identify (field redefinition invariant) features of the scalar field
  space manifold that can only be described by the latter HEFT\, and thereb
 y identify two classes of UV completions for which HEFT is\nrequired: i) t
 hose which contain extra sources of electroweak symmetry breaking\, ii) th
 ose which contain particles getting all of their mass from electroweak sym
 metry breaking.
LOCATION:Virtual Seminar 
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