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Calibbi, L; Lopez-Honorez, L; Lowette, S3; Mariotti, A2,3
Singlet-Doublet dark matter freeze-in: LHC displaced signatures versus cosmology
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
语种英语
关键词LYMAN-ALPHA FOREST STERILE NEUTRINOS LAMBDA-CDM RADIATION INTERACTIONS SATELLITE GALAXIES MODELS HALOES SEARCHES MILKY PHENOMENOLOGY
摘要We study the Singlet-Doublet dark matter model in the regime of feeble couplings, where the dark matter abundance is obtained via the freeze-in mechanism. As a consequence of the small couplings, the heavier particles in the model are long-lived with decay length at typical scales of collider experiments. We analyse the collider signatures of the model, characterised by displaced h and Z bosons plus missing momentum, employing current LHC searches for displaced vertices and missing energy to significantly constrain the parameter space of the model. We also take into account the cosmological bounds relevant for our light dark matter candidate arising from Lyman-alpha forest constraints. Our analysis emphasises the interplay between displaced signatures at the LHC and cosmology for dark matter candidates whose relic abundance is obtained through the freeze-in mechanism.
2018
ISSN1029-8479
期号9页码:37
学科领域Physics
学科门类Physics, Particles & Fields
DOI10.1007/JHEP09(2018)037
收录类别SCIE
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22822
专题理论物理所科研产出_SCI论文
作者单位1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
2.Univ Libre Bruxelles, Serv Phys Theor, CP 225, B-1050 Brussels, Belgium
3.Vrije Univ Brussel, Theoret Nat Kunde, Pl Laan 2, B-1050 Brussels, Belgium
4.Vrije Univ Brussel, Interuniv Inst High Energies, Pl Laan 2, B-1050 Brussels, Belgium
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Calibbi, L,Lopez-Honorez, L,Lowette, S,et al. Singlet-Doublet dark matter freeze-in: LHC displaced signatures versus cosmology[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(9):37.
APA Calibbi, L,Lopez-Honorez, L,Lowette, S,&Mariotti, A.(2018).Singlet-Doublet dark matter freeze-in: LHC displaced signatures versus cosmology.JOURNAL OF HIGH ENERGY PHYSICS(9),37.
MLA Calibbi, L,et al."Singlet-Doublet dark matter freeze-in: LHC displaced signatures versus cosmology".JOURNAL OF HIGH ENERGY PHYSICS .9(2018):37.
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