Higgs bosons of a supersymmetric $U(1{)}^{\prime }$ model at the ILC

Abstract

We study the scalar Higgs sector of the next-to-minimal supersymmetric standard model with an extra U(1), which has two Higgs doublets and a Higgs singlet, in the light leptophobic $Z^{\prime }$ scenario where the extra neutral gauge boson $Z^{\prime }$ does not couple to charged leptons. In this model, we find that the sum of the squared coupling coefficients of the three neutral scalar Higgs bosons to $ZZ$, normalized by the corresponding SM coupling coefficient is noticeably smaller than unity, due to the effect of the extra U(1), for a reasonable parameter space of the model, whereas it is unity in the next-to-minimal supersymmetric standard model. Thus, these two models may be distinguished if the coupling coefficients of neutral scalar Higgs bosons to $ZZ$ are measured at the future International Linear Collider by producing them via the Higgs-strahlung, $ZZ$ fusion, and $WW$ fusion processes.

arXiv comment12 pages, 2 figures, 1 table, PRD

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Cited by in corpus (3)

• The Next-to-Minimal Supersymmetric Standard Model
• Higgs bosons of a supersymmetric $E_6$ model at the Large Hadron Collider
• Exotic quark effects on the Higgs sector of the USSM at the LHC