Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC

doi:10.1103/PhysRevD.98.015010

ITP OpenIR > SCI期刊论文

	Duan, GH ; Hikasa, KI ; Ren, J 2,3; Wu, L 1; Yang, JM
	Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC
Source Publication	PHYSICAL REVIEW D
Language	英语
Keyword	WELL-TEMPERED NEUTRALINO SPLIT SUPERSYMMETRY HADRON COLLIDERS MSSM LIMIT MODEL MASS
Abstract	In the minimal supersymmetric standard model (MSSM), the bino-wino coannihilation provides a feasible way to accommodate the observed cosmological dark matter (DM) relic density. However, such a scenario usually predicts a very small DM-nucleon scattering cross section that is below the neutrino floor, and can not be tested by DM direct detection experiments. In this work, we investigate the discovery potential of this bino-wino co-annihilation region by searching for the soft dilepton events from the process pp -> chi(0)(2)(-> l(+)l(-)chi(0)(1))chi(+/-)(1) + jets at the LHC. We find that the mass of the winolike chi(0)(2) can be probed up to about 310 (230) GeV at 2 sigma (5 sigma) level for an integrated luminosity L = 300 fb(-1). In the future HL-LHC with 3000 fb(-1) luminosity, the corresponding mass limits can be pushed up to 430 (330) GeV.
	2018
ISSN	2470-0010
Volume	98 Issue:1 Pages:15010
Subject Area	Astronomy & Astrophysics ; Physics
MOST Discipline Catalogue	Astronomy & Astrophysics ; Physics, Particles & Fields
DOI	10.1103/PhysRevD.98.015010
Indexed By	SCIE
Citation statistics	Cited Times:12[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/22869
Collection	SCI期刊论文
Affiliation	1.Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China 2.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Jiangsu, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 5.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
Recommended Citation GB/T 7714	Duan, GH,Hikasa, KI,Ren, J,et al. Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC[J]. PHYSICAL REVIEW D,2018,98(1):15010.
APA	Duan, GH,Hikasa, KI,Ren, J,Wu, L,&Yang, JM.(2018).Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC.PHYSICAL REVIEW D,98(1),15010.
MLA	Duan, GH,et al."Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC".PHYSICAL REVIEW D 98.1(2018):15010.

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