NMSSM Higgs benchmarks near 125 GeV
NMSSM Higgs benchmarks near 125 GeV
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DOI：
10.1016/j.nuclphysb.2012.02.010
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发表时间：
2012-01
期刊：
影响因子：
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通讯作者：
S. King;M. Mühlleitner;R. Nevzorov
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文献类型：
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作者：
S. King;M. Mühlleitner;R. Nevzorov
最近大型强子对撞机显示接近 125 GeV 的类 SM 希格斯玻色子不仅与标准模型 (SM) 一致，而且与超对称性 (SUSY) 一致。然而，自然性论点不赞成最小超对称标准模型（MSSM）。我们考虑使用接近 125 GeV 的类 SM 希格斯玻色子的次小超对称标准模型 (NMSSM)，涉及相对较轻的光阑和低于 1 TeV 的胶量，以满足自然度要求。我们小心地确保所选择的耦合值不会在大统一 (GUT) 尺度以下变得无扰动，尽管我们也研究了如何通过在两环级别向 NMSSM 添加额外物质来扩展这些限制。然后，我们提出四组基准点，对应于 NMSSM 或带有额外物质的 NMSSM 中最轻或第二轻的希格斯玻色子类 SM 希格斯玻色子。借助这些基准点，我们讨论如何在未来大型强子对撞机搜索中将接近 125 GeV 的 NMSSM 希格斯玻色子与 SM 希格斯玻色子区分开来。
The recent LHC indications of a SM-like Higgs boson near 125 GeV are consistent not only with the Standard Model (SM) but also with Supersymmetry (SUSY). However naturalness arguments disfavour the Minimal Supersymmetric Standard Model (MSSM). We consider the Next-to-Minimal Supersymmetric Standard Model (NMSSM) with a SM-like Higgs boson near 125 GeV involving relatively light stops and gluinos below 1 TeV in order to satisfy naturalness requirements. We are careful to ensure that the chosen values of couplings do not become non-perturbative below the grand unification (GUT) scale, although we also examine how these limits may be extended by the addition of extra matter to the NMSSM at the two-loop level. We then propose four sets of benchmark points corresponding to the SM-like Higgs boson being the lightest or the second lightest Higgs state in the NMSSM or the NMSSM-with-extra-matter. With the aid of these benchmark points we discuss how the NMSSM Higgs boson near 125 GeV may be distinguished from the SM Higgs boson in future LHC searches.