Probing CP-violating Higgs sectors via the precision measurement of coupling constants

Aoki, Mayumi (Institute for Theoretical Physics, Kanazawa University, Kanazawa 920-1192, Japan) ; Hashino, Katsuya (Department of Physics, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan) (Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan) ; Kaneko, Daiki (Institute for Theoretical Physics, Kanazawa University, Kanazawa 920-1192, Japan) ; Kanemura, Shinya (Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan) ; Kubota, Mitsunori (Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan)

26 May 2019

Abstract: We study how the effects of the CP violation can be observed indirectly by precision measurements of Higgs boson couplings at a future Higgs factory such as the International Linear Collider. We consider two Higgs doublet models with softly broken discrete symmetry. We find that by measuring the Higgs boson couplings very precisely we are able to distinguish the CP-violating two Higgs doublet model with a certain type of Yukawa interaction from the CP-conserving one.


Published in: PTEP 2019 (2019) 053B02
Published by: Oxford University Press/Physical Society of Japan
DOI: 10.1093/ptep/ptz038
arXiv: 1808.08770
License: CC-BY-3.0



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