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DOI: 10.5445/IR/1000080968
Veröffentlicht am 09.03.2018

The C2HDM revisited

Fontes, Duarte; Mühlleitner, Margarete; Romão, Jorge C.; Santos, Rui; Silva, João P.; Wittbrodt, Jonas

Abstract:
The complex two-Higgs doublet model is one of the simplest ways to extend the scalar sector of the Standard Model to include a new source of CP-violation. The model has been used as a benchmark model to search for CP-violation at the LHC and as a possible explanation for the matter-antimatter asymmetry of the Universe. In this work, we re-analyse in full detail the softly broken ℤ2 symmetric complex two-Higgs doublet model (C2HDM). We provide the code C2HDM_HDECAY implementing the C2HDM in the well-known HDECAY program which calculates the decay widths including the state-of-the-art higher order QCD corrections and the relevant off-shell decays. Using C2HDM_HDECAY together with the most relevant theoretical and experimental constraints, including electric dipole moments (EDMs), we review the parameter space of the model and discuss its phenomenology. In particular, we find cases where large CP-odd couplings to fermions are still allowed and provide benchmark points for these scenarios. We examine the prospects of discovering CP-violation at the LHC and show how theoretically motivated measures of CP-violation correlate with observab ... mehr


Zugehörige Institution(en) am KIT Institut für Theoretische Physik (ITP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1029-8479, 1126-6708
URN: urn:nbn:de:swb:90-809687
KITopen ID: 1000080968
Erschienen in Journal of high energy physics
Band 2018
Heft 2
Seiten Art.Nr. 73
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 13.02.2018
Schlagworte Beyond Standard Model; CP violation; Higgs Physics
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