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Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario
Cao, JJ; He, YL; Shang, LL; Su, W; Zhang, Y; Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Jianshe East Rd, Xinxiang 453007, Peoples R China.; Cao, JJ (reprint author), Xi An Jiao Tong Univ, Dept Appl Phys, Xianning West Rd, Xian 710049, Peoples R China.
2016
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号8页码:37
文章类型Article
摘要We investigate the impact of the direct searches for SUSY at LHC Run I on the naturalness of the Next-to-Minimal Supersymmetric Standard Model (NMSSM). For this end, we first scan the vast parameter space of the NMSSM to get the region where the fine tuning measures Delta(z) and Delta(h) at the electroweak scale are less than about 50, then we implement by simulations the constraints of the direct searches on the parameter points in the region. Our results indicate that although the direct search experiments are effective in excluding the points, the parameter intervals for the region and also the minimum reaches of Delta(z) and Delta(h) are scarcely changed by the constraints, which implies that the fine tuning of the NMSSM does not get worse after LHC Run I. Moreover, based on the results we propose a natural NMSSM scenario where the lightest neutralino (X) over tilde (0)(1) as the dark matter (DM) candidate is Higgsino-dominated. In this scenario, Delta(z) and Delta(h) may be as low as 2 without conflicting with any experimental constraints, and intriguingly (X) over tilde (0)(1) can easily reach the measured DM relic density due to its significant Singlino component. We exhibit the features of the scenario which distinguish it from the other natural SUSY scenario, including the properties of its neutralino-chargino sector and scalar top quark sector. We emphasize that the scenario can be tested either through searching for 3l+E-T(miss) signal at 14 TeV LHC or through future DM direct detection experiments.
关键词Supersymmetry Phenomenology
学科领域Physics
资助者National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050]
DOIhttp://dx.doi.org/10.1007/JHEP08(2016)037
关键词[WOS]STANDARD MODEL ; SEARCH ; SUPERSYMMETRY ; CONSTRAINTS ; PREDICTIONS ; TEVATRON ; PHYSICS ; BOSONS ; MSSM ; MASS
收录类别SCI
语种英语
资助者National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050] ; National Natural Science Foundation of China (NNSFC) [11575053, 11275245, 11305050]
WOS类目Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21569
专题理论物理所SCI论文
通讯作者Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Jianshe East Rd, Xinxiang 453007, Peoples R China.; Cao, JJ (reprint author), Xi An Jiao Tong Univ, Dept Appl Phys, Xianning West Rd, Xian 710049, Peoples R China.
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Cao, JJ,He, YL,Shang, LL,et al. Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(8):37.
APA Cao, JJ.,He, YL.,Shang, LL.,Su, W.,Zhang, Y.,...&Cao, JJ .(2016).Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario.JOURNAL OF HIGH ENERGY PHYSICS(8),37.
MLA Cao, JJ,et al."Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario".JOURNAL OF HIGH ENERGY PHYSICS .8(2016):37.
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