Knowledge Management System of Institute of Theoretical Physics, CAS
Du, G; Li, TJ ; Nanopoulos, DV; Raza, S; Du, G (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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| Supernatural MSSM | |
| Source Publication | PHYSICAL REVIEW D
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| Language | 英语 |
| Abstract | We point out that the electroweak fine-tuning problem in the supersymmetric standard models (SSMs) is mainly due to the high energy definition of the fine-tuning measure. We propose supernatural supersymmetry which has an order one high energy fine-tuning measure automatically. The key point is that all the mass parameters in the SSMs arise from a single supersymmetry breaking parameter. In this paper, we show that there is no supersymmetry electroweak fine-tuning problem explicitly in the minimal SSM (MSSM) with no-scale supergravity and Giudice-Masiero mechanism. We demonstrate that the Z-boson mass, the supersymmetric Higgs mixing parameter mu at the unification scale, and the sparticle spectrum can be given as functions of the universal gaugino mass M-1/2. Because the light stau is the lightest supersymmetric particle (LSP) in the no-scale MSSM, to preserve R parity, we introduce a non-thermally generated axino as the LSP dark matter candidate. We estimate the lifetime of the light stau by calculating its two-body and three-body decays to the LSP axino for several values of axion decay constant f(a), and find that the light stau has a lifetime tau((tau) over bar1) in [10(-4), 100] s for an f(a) range [10(9), 10(12)] GeV. We show that our next to the LSP stau solutions are consistent with all the current experimental constraints, including the sparticle mass bounds, B-physics bounds, Higgs mass, cosmological bounds, and the bounds on long-lived charged particles at the LHC. |
| 2015 | |
| Volume | 92Issue:2Pages:25038 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| DOI | http://dx.doi.org/10.1103/PhysRevD.92.025038 |
| Indexed By | SCI |
| Funding Organization | Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246, 11475238] ; Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246, 11475238] ; Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246, 11475238] ; Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246, 11475238] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; National Basic Research Program of China (973 Program) [2010CB833000] ; U.S. Department of Energy Award [DE-FG03-95-ER-40917] ; U.S. Department of Energy Award [DE-FG03-95-ER-40917] ; U.S. Department of Energy Award [DE-FG03-95-ER-40917] ; U.S. Department of Energy Award [DE-FG03-95-ER-40917] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/20917 |
| Collection | SCI期刊论文 |
| Corresponding Author | Du, G (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Du, G,Li, TJ,Nanopoulos, DV,et al. Supernatural MSSM[J]. PHYSICAL REVIEW D,2015,92(2):25038. |
| APA | Du, G,Li, TJ,Nanopoulos, DV,Raza, S,&Du, G .(2015).Supernatural MSSM.PHYSICAL REVIEW D,92(2),25038. |
| MLA | Du, G,et al."Supernatural MSSM".PHYSICAL REVIEW D 92.2(2015):25038. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Supernatural MSSM.pd（756KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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