Simplified TeV leptophilic dark matter in light of DAMPE data | |
Duan, Guang Hua1,2,3,4; Feng, Lei5; Wang, Fei6; Wu, Lei1,2; Yang, Jin Min3,4,7; Zheng, Rui8 | |
刊名 | JOURNAL OF HIGH ENERGY PHYSICS |
2018-02-19 | |
期号 | 2页码:14 |
关键词 | Phenomenological Models |
ISSN号 | 1029-8479 |
DOI | 10.1007/JHEP02(2018)107 |
英文摘要 | Using a simplified framework, we attempt to explain the recent DAMPE cosmic e(+) + e(-) flux excess by leptophilic Dirac fermion dark matter (LDM). The scalar (Phi(0)) and vector (Phi(1)) mediator fields connecting LDM and Standard Model particles are discussed. We find that the couplings P circle times S, P circle times P, V circle times A and V circle times V can produce the right bump in e(+) + e(-) flux for a DM mass around 1.5 TeV with a natural thermal annihilation cross-section < sigma v > similar to 3 x 10(-26)cm(3)/s today. Among them, V circle times V coupling is tightly constrained by PandaX-II data (although LDM-nucleus scattering appears at one-loop level) and the surviving samples appear in the resonant region, m(Phi 1) similar or equal to 2m(chi). We also study the related collider signatures, such as dilepton production pp -> Phi(1) -> l(+) l(-), and muon g - 2 anomaly. Finally, we present a possible U(1)(X) realization for such leptophilic dark matter. |
WOS关键词 | MODEL ; LEP |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000426356500001 |
内容类型 | 期刊论文 |
源URL | [http://libir.pmo.ac.cn/handle/332002/22286] |
专题 | 中国科学院紫金山天文台 |
通讯作者 | Duan, Guang Hua |
作者单位 | 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.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 6.Zhengzhou Univ, Sch Phys, Zhengzhou 450000, Henan, Peoples R China 7.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan 8.Univ Calif Davis, Dept Phys, Davis, CA 95616 USA |
推荐引用方式 GB/T 7714 | Duan, Guang Hua,Feng, Lei,Wang, Fei,et al. Simplified TeV leptophilic dark matter in light of DAMPE data[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(2):14. |
APA | Duan, Guang Hua,Feng, Lei,Wang, Fei,Wu, Lei,Yang, Jin Min,&Zheng, Rui.(2018).Simplified TeV leptophilic dark matter in light of DAMPE data.JOURNAL OF HIGH ENERGY PHYSICS(2),14. |
MLA | Duan, Guang Hua,et al."Simplified TeV leptophilic dark matter in light of DAMPE data".JOURNAL OF HIGH ENERGY PHYSICS .2(2018):14. |
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