Electroweak supersymmetry from the generalized minimal supergravity model in the MSSM

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	Electroweak supersymmetry from the generalized minimal supergravity model in the MSSM
	Li, TJ; Raza, S
刊名	PHYSICAL REVIEW D
	2015
卷号	91 期号:5 页码:55016
通讯作者	Li, TJ (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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.
学科主题	Astronomy & Astrophysics ; Physics
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
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21056]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Li, TJ,Raza, S. Electroweak supersymmetry from the generalized minimal supergravity model in the MSSM[J]. PHYSICAL REVIEW D,2015,91(5):55016.
APA	Li, TJ,&Raza, S.(2015).Electroweak supersymmetry from the generalized minimal supergravity model in the MSSM.PHYSICAL REVIEW D,91(5),55016.
MLA	Li, TJ,et al."Electroweak supersymmetry from the generalized minimal supergravity model in the MSSM".PHYSICAL REVIEW D 91.5(2015):55016.