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A light Higgs scalar in the NMSSM confronted with the latest LHC Higgs data | | Junjie Cao
; Fangfang Ding
; Chengcheng Han
; Jin Min Yang
; Jingya Zhu
; | | Date: |
19 Sep 2013 | | Abstract: | In the Next-to-Minimal Supersymemtric Standard Model (NMSSM), one of the
neutral Higgs scalars (CP-even or CP-odd) may be lighter than half of the
SM-like Higgs boson. In this case, the SM-like Higgs boson h can decay into
such a light scalar pair and consequently the diphoton and ZZ signal rates at
the LHC will be suppressed. In this work, we examine the constraints of the
latest LHC Higgs data on such a possibility. We perform a comprehensive scan
over the parameter space of the NMSSM by considering various experimental
constraints and find that the LHC Higgs data can readily constrain the
parameter space and the properties of the light scalar, e.g., at 3 sigma level
this light scalar should be highly singlet dominant and the branching ratio of
the SM-like Higgs boson decay into the scalar pair should be less than 30%.
Also we investigate the detection of this scalar at various colliders. Through
a detailed Monte Carlo simulation we find that under the constraints of the
current Higgs data this light scalar can be accessible at the LHC-14 with an
integrated luminosity over 300 fb^{-1}. | | Source: | arXiv, 1309.4939 | | Services: | Forum | Review | PDF | Favorites | |
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