Abstract
Abstract In the NMSSM it is well possible to find an additional Higgs boson with a mass below 125 GeV which remains invisible in standard Higgs boson search channels. We study the Higgs pair production cross sections times branching fractions in this scenario, focussing on gluon fusion and the $ b\overline{b} $ + τ + τ − and $ b\overline{b} $ + γγ final states. Summing over the SM-like and the lighter Higgs states, the production cross sections times branching fractions are never below the ones for SM Higgs pair production. Sizeable enhancements of the signal rates are also possible, notably if a lighter Higgs state is produced. However, the rates involving at least one lighter Higgs boson are not always sufficiently large to guarantee its discovery.
Highlights
We study the Higgs pair production cross sections times branching fractions in this scenario, focussing on gluon fusion and the bb + τ +τ − and bb + γγ final states
JHEP08(2013)077 was emphasized that loop corrections to the trilinear Higgs couplings and to the pair production of two states HSM can potentially be large. (The range of the trilinear Higgs couplings within some regions of the parameter space of the NMSSM have been studied in [54].)
The code NMSSMTools provides us with all required parameters for the calculation of the Higgs pair production cross sections in gluon fusion of all possible combinations of H1 and H2 states
Summary
JHEP08(2013)077 was emphasized that loop corrections to the trilinear Higgs couplings and to the pair production of two states HSM can potentially be large. (The range of the trilinear Higgs couplings within some regions of the parameter space of the NMSSM have been studied in [54].). We study the Higgs pair production cross sections times branching fractions in this scenario, focussing on gluon fusion and the bb + τ +τ − and bb + γγ final states.
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