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Duan, GH; Hikasa, KI; Ren, J2,3; Wu, L1; Yang, JM
Probing bino-wino coannihilation dark matter below the neutrino floor at the LHC
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordWELL-TEMPERED NEUTRALINO SPLIT SUPERSYMMETRY HADRON COLLIDERS MSSM LIMIT MODEL MASS
AbstractIn 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
ISSN2470-0010
Volume98Issue:1Pages:15010
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.98.015010
Indexed BySCIE
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22869
CollectionSCI期刊论文
Affiliation1.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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