Can we discover a light singlet-like NMSSM Higgs boson at the LHC?

Beskidt, C.; Kazakov, D. I.

doi:10.1016/j.physletb.2018.04.067

Cited by 20 publications

(15 citation statements)

References 91 publications

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“…Here, we turn to the scalar sector and explore the sensitivity of the LHC to heavy scalar resonances in the U (1) B−L gauge extension. Our study extends similar earlier studies for twin and composite Higgs models [41] and the NMSSM [42].…”

Section: Introductionsupporting

confidence: 91%

Discovering heavy U(1)-gauged Higgs bosons at the HL-LHC

Camargo¹,

Klasen²,

Zeinstra³

2019

Preprint

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We determine the discovery potential of the Large Hadron Collider (LHC) at 13 TeV center-of-mass energy for a heavy scalar resonance in the dilepton channel. In particular, we consider the singlet-like heavy mass eigenstate of a mixed two Higgs doublet and scalar singlet model in the U (1)B−L extension of the Standard Model. We find that, despite the small coupling of the singlet scalar with the doublets, this heavy scalar can be discovered with 5σ at the LHC with integrated luminosities of ∼ 300 to 1400 fb −1 in the mass range between 500 GeV and 1 TeV.

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Section: Introductionsupporting

confidence: 91%

Discovering heavy U(1)-gauged Higgs bosons at the HL-LHC

Camargo¹,

Klasen²,

Zeinstra³

2019

Preprint

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“…[20,21], there are intriguing relations between Higgs mixings and the model parameters λ and μ that hold for the general NMSSM. Those relations are quite useful when examining how much Higgs mixings, which determine how the neutral Higgs bosons couple to SM particles [22][23][24][25][26][27][28][29], are constrained by the requirements on the model such as radiative corrections to the Higgs masses, the perturbativity bound on λ, and the chargino mass limit on μ. The viable region of mixing parameter space would be further constrained if one specifies singlet self-interactions.…”

Section: Introductionmentioning

confidence: 99%

Light Higgs bosons in the general NMSSM

Choi

Jeong

et al. 2019

Eur. Phys. J. C

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Physics beyond the Standard Model (SM) may manifest itself as small deviations from the SM predictions for Higgs signal strengths at 125 GeV. Then, a plausible and interesting possibility is that the Higgs sector is extended and at the weak scale there appears an additional Higgs boson weakly coupled to the SM sector. Combined with the LEP excess in e + e − → Z (h → bb), the diphoton excess around 96 GeV recently reported by CMS may suggest such a possibility. We examine if those LEP and CMS excesses can be explained simultaneously by a singlet-like Higgs boson in the general next-to-minimal supersymmetric Standard Model (NMSSM). Higgs mixing in the NMSSM relies on the singlet coupling to the MSSM Higgs doublets and the higgsino mass parameter, and thus is subject to the constraints on these supersymmetric parameters. We find that the NMSSM can account for both the LEP and CMS excesses at 96 GeV while accommodating the observed 125 GeV SM-like Higgs boson. Interestingly, the required mixing angles constrain the heavy doublet Higgs boson to be heavier than about 500 GeV. We also show that the viable region of mixing parameter space is considerably modified if the higgsino mass parameter is around the weak scale, mainly because of the Higgs coupling to photons induced by the charged higgsinos.

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“…Preliminary analysis of the zero and nonzero finite-temperature MSSM and NMSSM effective potentials has been performed [3][4][5] in the various scenarios. In comparison with other analyses not only the case of noninteracting cosmic plasma in the background fields (zeroth approximation in the couplings or the "one-loop" approximation for the free energy at nonzero temperature) has been considered [5].…”

Section: Introductionmentioning

confidence: 99%

“…One of the most popular models in particle physics today is the minimal and next-tominimal supersymmetry (NMSSM) models [4,7]. Its consequences have long been checked on the LHC.…”

Section: Introductionmentioning

confidence: 99%

Critical temperatures in extensions of Higgs sector

et al. 2018

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In this paper the control parameters of the Higgs potential are considered in the framework of supersymmetric models MSSM and Next-to-MSSM. The determination of these parameters is an important part related to the explanation of the CP violation evidence and electroweak phase transition evolution from the energy of the supersymmetry scale to the standard model energy scale. There is a discussion here on the problem of violation of CP invariance and its effect on the Higgs potential control parameters determination and the dark matter experimental constraints. Also the problem of determining the Potential ↔ Free Energy parameters from the points of temperature field theory and critical temperatures view is considered.

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Can we discover a light singlet-like NMSSM Higgs boson at the LHC?

Cited by 20 publications

References 91 publications

Discovering heavy U(1)-gauged Higgs bosons at the HL-LHC

Discovering heavy U(1)-gauged Higgs bosons at the HL-LHC

Light Higgs bosons in the general NMSSM

Critical temperatures in extensions of Higgs sector

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