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题名: Electroweak supersymmetry from the generalized minimal supergravity model in the MSSM
作者: Li, TJ;  Raza, S
刊名: PHYSICAL REVIEW D
出版日期: 2015
卷号: 91, 期号:5, 页码:55016
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.91.055016
通讯作者: Li, TJ (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: Considering the generalized minimal supergravity model in the minimal supersymmetric Standard Model, we study the electroweak supersymmetry, in which the squarks and/or gluino are heavy around a few TeVs while the sleptons, sneutrinos, bino, winos, and/or Higgsinos are light within 1 TeV. We resolve the (g - 2)(mu)/2 discrepancy for the muon anomalous magnetic moment in the Standard Model successfully and identify a parameter space in which such solutions also have the electroweak fine-tuning measures Delta(EW) 16.5 (6%) and Delta(EW) 25 (4%) without and with the Wilkinson Microwave Anisotropy Probe (WMAP) bounds, respectively. We find that the allowed mass ranges, which are consistent within 3 sigma of the g - 2 discrepancy, for the lightest neutralino, charginos, stau, stau neutrinos, and first two-family sleptons are [44, 390], [100, 700], [100, 700], [52, 800], and [150, 800] GeV, respectively. Moreover, our solutions satisfy the latest bounds reported by the ATLAS and CMS collaborations on electroweakinos and sleptons. The colored sparticles such as light stop, gluinos, and the first the first two generations of squark masses have been found in the mass ranges of [500, 3000], [1300, 4300], and [1800, 4200] GeV, respectively. To obtain the observed dark matter relic density for the lightest supersymmetric particle (LSP) neutralino, we have the bino-wino, LSP neutralino-stau, and LSP neutralino-tau sneutrinos coannihilation scenarios and the resonance solutions such as the A pole, Higgs pole, and Z pole. We identify the Higgsino-like LSP neutralino and display its spin-independent and spin-dependent cross sections with nucleons. We present ten benchmark points that can be tested at the up coming collider searches as well.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: SU(5) GRAND UNIFICATION ;  INVISIBLE AXION ;  DARK-MATTER ;  MUON G-2 ;  CP CONSERVATION ;  STANDARD MODEL ;  HIGGS-BOSON ;  SEARCH ;  SUSY ;  LHC
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]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21056
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Li, TJ,Raza, S. Electroweak supersymmetry from the generalized minimal supergravity model in the MSSM[J]. PHYSICAL REVIEW D,2015,91(5):55016.
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