论文编号:
第一作者所在部门:
论文题目:	Status of natural supersymmetry from the generalized minimal supergravity in light of the current LHC run-2 and LUX data
论文题目英文:
作者:	Ahmed, Waqas; Bi, Xiao-Jun; Li, Tianjun; Niu, Jia-Shu; Raza, Shabbar; Xiang, Qian-Fei; Yin, Peng-Fei
论文出处:
刊物名称:	PHYSICAL REVIEW D
年:	2018
卷:	98
期:	1
页:	15040
联系作者:	Ahmed, W (reprint author)
收录类别:
影响因子:
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.
英文摘要:
外单位作者单位:
备注: