期刊
NUCLEAR PHYSICS B
卷 862, 期 3, 页码 710-719出版社
ELSEVIER
DOI: 10.1016/j.nuclphysb.2012.05.007
关键词
-
资金
- EU ITN grant [UNILHC 237920]
- ERC Advanced Grant [BSMOXFORD 228169]
We determine the degree of fine-tuning needed in a generalised version of the NMSSM that follows from an underlying Z(4) or Z(8) R-symmetry. We find that it is significantly less than is found in the MSSM or NMSSM and extends the range of Higgs mass that have acceptable fine-tuning. Remarkably the minimal fine-tuning is achieved for Higgs masses of around 130 GeV. (C) 2012 Elsevier B.V. All rights reserved.
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