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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
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordLYMAN-ALPHA FOREST STERILE NEUTRINOS LAMBDA-CDM RADIATION INTERACTIONS SATELLITE GALAXIES MODELS HALOES SEARCHES MILKY PHENOMENOLOGY
AbstractWe 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
Issue9Pages:37
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1007/JHEP09(2018)037
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22822
Collection理论物理所科研产出_SCI论文
Affiliation1.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
Recommended Citation
GB/T 7714
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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