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Phenomenological comparison of models with extended Higgs sectors

Mühlleitner, Margarete 1; Sampaio, Marco O. P.; Santos, Rui; Wittbrodt, Jonas 1
1 Institut für Theoretische Physik (ITP), Karlsruher Institut für Technologie (KIT)


Beyond the Standard Model (SM) extensions usually include extended Higgs sectors. Models with singlet or doublet fields are the simplest ones that are compatible with the ρ parameter constraint. The discovery of new non-SM Higgs bosons and the identification of the underlying model requires dedicated Higgs properties analyses. In this paper, we compare several Higgs sectors featuring 3 CP-even neutral Higgs bosons that are also motivated by their simplicity and their ability to solve some of the flaws of the SM. They are: the SM extended by a complex singlet field (CxSM), the singlet extension of the 2-Higgs-Doublet Model (N2HDM), and the Next-to-Minimal Supersymmetric SM extension (NMSSM). In addition, we analyse the CP-violating 2-Higgs-Doublet Model (C2HDM), which provides 3 neutral Higgs bosons with a pseudoscalar admixture. This allows us to compare the effects of singlet and pseudoscalar admixtures. Through dedicated scans of the allowed parameter space of the models, we analyse the phenomenologically viable scenarios from the view point of the SM-like Higgs boson and of the signal rates of the non-SM-like Higgs bosons to be found. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000077316
Veröffentlicht am 07.12.2017
DOI: 10.1007/JHEP08(2017)132
Zitationen: 54
Web of Science
Zitationen: 50
Zitationen: 52
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 08.2017
Sprache Englisch
Identifikator ISSN: 1029-8479, 1126-6708
KITopen-ID: 1000077316
Erschienen in Journal of high energy physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 2017
Heft 8
Seiten 132
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Schlagwörter Beyond Standard Model; Higgs Physics; CP violation; Supersymmetric Standard Model
Nachgewiesen in Scopus
Web of Science
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