Phenomenology of the inflation-inspired NMSSM at the electroweak scale

Hollik, Wolfgang Gregor; Liebler, Stefan; Weiglein, Georg; Paßehr, Sebastian; Moortgat-Pick, Gudrid

doi:10.1140/epjc/s10052-019-6561-6

Journal Article

PUBDB-2019-05664

Phenomenology of the inflation-inspired NMSSM at the electroweak scale

Hollik, W. G. (Corresponding author)Extern* ; Liebler, S.Extern* ; Moortgat-Pick, G.DESY* ; Paßehr, S.Extern* ; Weiglein, G.DESY*

2019
Springer Heidelberg

The European physical journal / C 79(1), 75 (2019) [10.1140/epjc/s10052-019-6561-6]

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Please use a persistent id in citations: doi:10.1140/epjc/s10052-019-6561-6 doi:10.3204/PUBDB-2019-05664

Report No.: DESY-17-075; KA-TP-26-2018; arXiv:1809.07371

Abstract: The concept of Higgs inflation can be elegantly incorporated in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). A linear combination of the two Higgs-doublet fields plays the role of the inflaton which is non-minimally coupled to gravity. This non-minimal coupling appears in the low-energy effective superpotential and changes the phenomenology at the electroweak scale. While the field content of the inflation-inspired model is the same as in the NMSSM, there is another contribution to the μ term in addition to the vacuum expectation value of the singlet. We explore this extended parameter space and point out scenarios with phenomenological differences compared to the pure NMSSM. A special focus is set on the electroweak vacuum stability and the parameter dependence of the Higgs and neutralino sectors. We highlight regions which yield a SM-like 125GeV Higgs boson compatible with the experimental observations and are in accordance with the limits from searches for additional Higgs bosons. Finally, we study the impact of the non-minimal coupling to gravity on the Higgs mixing and in turn on the decays of the Higgs bosons in this model

Classification:

ddc:530

Note: © The Author(s)

Contributing Institute(s):

Theorie-Gruppe (T)

Research Program(s):

611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

No specific instrument

Appears in the scientific report 2019

Database coverage:
Medline

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