Abstract
In the next-to minimal supersymmetric standard model (NMSSM) one additional singlet-like Higgs boson with small couplings to standard model (SM) particles is introduced. Although the mass can be well below the discovered 125 GeV Higgs boson mass its small couplings may make a discovery at the LHC difficult. We use a novel scanning technique to efficiently scan the whole parameter space and determine the range of cross sections and branching ratios for the light singlet-like Higgs boson below 125 GeV. This allows to determine the perspectives for the future discovery potential at the LHC. Specific LHC benchmark points are selected representing the salient NMSSM features.
Highlights
Supersymmetry (SUSY) predicts a light Higgs boson with a mass below 130 GeV which is compatible with the discovered Higgs-like boson with SM-like couplings and a mass of 125 GeV [4,5]
We compare the cross sections times branching ratios with the corresponding value for the observed 125 GeV Higgs boson in order to get a feeling for the observability for the two dominant Higgs production modes in Tables 1 and 2 for both regions
The couplings from the lightest Higgs boson are singlet-like many final states show a compatible cross section times branching ratio compared to the SM Higgs boson because of the large phasespace for a light Higgs boson
Summary
Supersymmetry (SUSY) predicts a light Higgs boson with a mass below 130 GeV (for reviews see [1,2,3]) which is compatible with the discovered Higgs-like boson with SM-like couplings and a mass of 125 GeV [4,5]. Even if one considers the well-motivated subspace with unified masses and couplings at the GUT scale the additional particles and their interactions lead to a large parameter space. To cope with this large parameter space and especially the large correlations between the parameters, we use a novel scanning technique to obtain the expected range of cross sections and branching ratios of the light singlet-like Higgs boson. These benchmark points, as detailed in the supplemental material, can be used to simulate the discovery channels and its background more precisely in order to get a quantitative determination of the discovery potential
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