Leptophilic dark matter in gauged U(1) L-e - L-mu model in light of DAMPE cosmic ray e(+) + e(-) excess

doi:10.1140/epjc/s10052-018-5805-1

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	Leptophilic dark matter in gauged U(1) L-e - L-mu model in light of DAMPE cosmic ray e(+) + e(-) excess
	Wu, L 1; Duan, GH ; He, XG ; Yang, JM
刊名	EUROPEAN PHYSICAL JOURNAL C
	2018
卷号	78 期号:4 页码:323
关键词	BOSON LEP
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-018-5805-1
英文摘要	Motivated by the very recent cosmic-ray electron+positron excess observed by DAMPE collaboration, we investigate a Dirac fermion dark matter (DM) in the gauged L-e - L-mu model. DM interacts with the electron and muon via the U(1)(e-mu) gauge boson Z'. The model can explain the DAMPE data well. Although a non-zero DM-nucleon cross section is only generated at one loop level and there is a partial cancellation between Z' ee and Z' mu mu couplings, we find that a large portion of Z' mass is ruled out from direct DM detection limit leaving the allowed Z' mass to be close to two times of the DM mass. Implications for pp -> Z' -> 2l and pp -> 2l + Z', and muon g - 2 anomaly are also studied.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22917]
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.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.Acad Sinica, 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.Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan 6.Natl Ctr Theoret Sci, Phys Div, Hsinchu 30013, Taiwan 7.Shanghai Jiao Tong Univ, Sch Phys & Astron, T D Lee Inst, Shanghai 200240, Peoples R China 8.Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
推荐引用方式 GB/T 7714	Wu, L,Duan, GH,He, XG,et al. Leptophilic dark matter in gauged U(1) L-e - L-mu model in light of DAMPE cosmic ray e(+) + e(-) excess[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(4):323.
APA	Wu, L,Duan, GH,He, XG,&Yang, JM.(2018).Leptophilic dark matter in gauged U(1) L-e - L-mu model in light of DAMPE cosmic ray e(+) + e(-) excess.EUROPEAN PHYSICAL JOURNAL C,78(4),323.
MLA	Wu, L,et al."Leptophilic dark matter in gauged U(1) L-e - L-mu model in light of DAMPE cosmic ray e(+) + e(-) excess".EUROPEAN PHYSICAL JOURNAL C 78.4(2018):323.