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SUMMARY:Extended Scalar Sectors at CLIC
DTSTART;VALUE=DATE-TIME:20190913T141500Z
DTEND;VALUE=DATE-TIME:20190913T143000Z
DTSTAMP;VALUE=DATE-TIME:20260618T040933Z
UID:indico-contribution-15@cern.ch
DESCRIPTION:Speakers: Mr. AZEVEDO\, Duarte (Centro de Física Teórica e C
 omputacional\, Universidade de Lisboa.)\nThe phenomenology of several Beyo
 nd the Standard Model (SM) extensions that include extended Higgs sectors 
 will be presented. The models discussed are: the SM extended by a complex 
 singlet field (CxSM)\, the 2-Higgs-Doublet Model with a CP-conserving (2HD
 M) and a CP-violating (C2HDM) scalar sector\, the singlet extension of the
  2-Higgs-Doublet Model (N2HDM)\, and the Next-to-Minimal Supersymmetric SM
  extension (NMSSM). All the above models have at least three neutral scala
 rs\, with one being the 125 GeV Higgs boson. This common feature allows us
  to compare the production and decay rates of the other two scalars and th
 erefore to compare their behaviour at future electron-positron colliders. 
 Using predictions on the expected precision of the 125 GeV Higgs boson cou
 plings at these colliders we are able to obtain the allowed admixtures of 
 either a singlet or a pseudoscalar to the observed 125 GeV scalar\, how mu
 ch CP-violating can the Yukawa couplings have\, among other. Therefore\, e
 ven if no new scalar is found\, the expected precision at future electron-
 positron colliders\, such as CLIC\, will certainly contribute to a clearer
  picture of the nature of the discovered Higgs boson.\n\nhttp://indico.fuw
 .edu.pl/contributionDisplay.py?contribId=15&sessionId=3&confId=59
LOCATION:University of Warsaw 1.01
URL:http://indico.fuw.edu.pl/contributionDisplay.py?contribId=15&sessionId
 =3&confId=59
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