Singlet-Doublet dark matter freeze-in: LHC displaced signatures versus cosmology
文献类型：期刊论文
| 作者 | Calibbi, L; Lopez-Honorez, L; Lowette, S3; Mariotti, A2,3 |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2018 |
| 期号 | 9页码:37 |
| 关键词 | LYMAN-ALPHA FOREST STERILE NEUTRINOS LAMBDA-CDM RADIATION INTERACTIONS SATELLITE GALAXIES MODELS HALOES SEARCHES MILKY PHENOMENOLOGY |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/JHEP09(2018)037 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22822]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：理论物理研究所
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