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Ahmed, W; Bi, XJ; Li, TJ; Niu, JS; Raza, S3; Xiang, QF; Yin, PF
Status of natural supersymmetry from the generalized minimal supergravity in light of the current LHC run-2 and LUX data
发表期刊PHYSICAL REVIEW D
语种英语
关键词SU(5) GRAND UNIFICATION NO-SCALE SUPERGRAVITY DARK-MATTER STANDARD MODEL HIGGS-BOSON ATLAS DETECTOR ELECTROWEAK MASS COSMOLOGY BREAKING
摘要We study natural supersymmetry in the generalized minimal supergravity (GmSUGRA). For the parameter space with low energy, electroweak fine-tuning measures less than 50, we are left with only the Z-pole, Higgs-pole, and Higgsino LSP scenarios for dark matter (DM). We perform the focused scans for such parameter space and find that it satisfies various phenomenological constraints and is compatible with the current direct detection bound on neutralino DM reported by the LUX experiment. Such parameter space also has solutions with correct DM relic density besides the solutions with DM relic density smaller or larger than 5s WMAP9 bounds. We present five benchmark points as examples. In these benchmark points, the gluino and the first two generations of squarks are heavier than 2 TeV, stop (t) over tilde (1;) (2) are in the mass range [1, 2] TeV, while sleptons are lighter than 1 TeV. Some part of the parameter space can explain the muon anomalous magnetic moment within 3 sigma as well. We also perform the collider study of such solutions by implementing and comparing with relevant studies done by the ATLAS and CMS Collaborations. We find that the points with Higgsino dominant (x) over tilde (0)(2) mass up to 300 GeVare excluded in Z-pole scenario while for Higgs-pole scenario, the points with (x) over tilde (0)(2) mass up to 460 GeVare excluded. We also notice that the Higgsino LSP points in our present scans are beyond the reach of present LHC searches. Next, we show that for both the Z-pole and Higgs-pole scenarios, the points with electroweak fine-tuning measures around 20 do still survive.
2018
ISSN2470-0010
卷号98期号:1页码:15040
合作性质国际
学科领域Astronomy & Astrophysics ; Physics
学科门类Astronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.98.015040
收录类别SCI
项目资助者National Natural Science Foundation of China [11475189, 11475191, 11475238, 11647601] ; National Natural Science Foundation of China [11475189, 11475191, 11475238, 11647601] ; National Key Program for Research and Development [2016YFA0400200] ; National Key Program for Research and Development [2016YFA0400200] ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS ; CAS-TWAS Presidents Fellowship Programme ; CAS-TWAS Presidents Fellowship Programme
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22744
专题计算平台成果
作者单位1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Fed Urdu Univ Arts Sci & Technol, Dept Phys, Karachi 75300, Pakistan
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Ahmed, W,Bi, XJ,Li, TJ,et al. Status of natural supersymmetry from the generalized minimal supergravity in light of the current LHC run-2 and LUX data[J]. PHYSICAL REVIEW D,2018,98(1):15040.
APA Ahmed, W.,Bi, XJ.,Li, TJ.,Niu, JS.,Raza, S.,...&Yin, PF.(2018).Status of natural supersymmetry from the generalized minimal supergravity in light of the current LHC run-2 and LUX data.PHYSICAL REVIEW D,98(1),15040.
MLA Ahmed, W,et al."Status of natural supersymmetry from the generalized minimal supergravity in light of the current LHC run-2 and LUX data".PHYSICAL REVIEW D 98.1(2018):15040.
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