中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所2015年知识产出  > 期刊论文
题名: Supernatural MSSM
作者: Du, G;  Li, TJ;  Nanopoulos, DV;  Raza, S
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 92, 期号:2, 页码:25038
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.92.025038
通讯作者: Du, G (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: 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.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: LONG-LIVED STAU ;  SUPERSYMMETRIC DARK-MATTER ;  BIG-BANG NUCLEOSYNTHESIS ;  LATE-DECAYING PARTICLES ;  NO-SCALE SUPERGRAVITY ;  X U(1)(X) MODELS ;  E(+)E(-) ANNIHILATION ;  CHARGED-PARTICLES ;  GLOBAL SYMMETRIES ;  CP CONSERVATION
收录类别: SCI
项目资助者: Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246, 11475238] ;  National Basic Research Program of China (973 Program) [2010CB833000] ;  U.S. Department of Energy Award [DE-FG03-95-ER-40917]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20917
Appears in Collections:理论物理所2015年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Supernatural MSSM.pdf(756KB)期刊论文出版稿开放获取View Download

Recommended Citation:
Du, G,Li, TJ,Nanopoulos, DV,et al. Supernatural MSSM[J]. PHYSICAL REVIEW D,2015,92(2):25038.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Du, G]'s Articles
 [Li, TJ]'s Articles
 [Nanopoulos, DV]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Du, G]‘s Articles
 [Li, TJ]‘s Articles
 [Nanopoulos, DV]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Supernatural MSSM.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace