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PAMELA/Fermi-LAT electron cosmic ray spectrum at similar to 100 GeV: Implication for dark matter annihilation signal in accordance with the 130 GeV gamma-ray line
Feng, L; 袁强;Yuan, Q; Li, X; Fan, YZ
2013
发表期刊PHYSICS LETTERS B
卷号720期号:1-3页码:1-5
摘要Recently, a tentative 130 GeV gamma-ray line signal was identified by quite a few groups. If correct it would constitute a "smoking gun" for dark matter annihilations. Interestingly, the spectra of the cosmic ray electrons detected by PAMELA and Fermi-LAT. both show tiny wiggle-like structure at similar to 100 GeV, which might indicate a weak signal of the annihilation of similar to 130 GeV dark matter particles into electrons/positrons with a velocity-weighted cross section (sigma nu)chi chi -> e(+),e(-) similar to 4 x 10(-26) cm(3) s(-1). The prospect of identifying such a potential weak dark-matter-annihilation electron and/or positron component by AMS-02, a mission.to measure the high energy cosmic ray spectra with unprecedented accuracy, is investigated. (C) 2013 Elsevier B.V. All rights reserved.
学科领域Physics
DOI10.1016/j.physletb.2013.01.060
收录类别SCI
WOS记录号WOS:000316513500001
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/223749
专题粒子天体物理中心
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Feng, L,袁强;Yuan, Q,Li, X,et al. PAMELA/Fermi-LAT electron cosmic ray spectrum at similar to 100 GeV: Implication for dark matter annihilation signal in accordance with the 130 GeV gamma-ray line[J]. PHYSICS LETTERS B,2013,720(1-3):1-5.
APA Feng, L,袁强;Yuan, Q,Li, X,&Fan, YZ.(2013).PAMELA/Fermi-LAT electron cosmic ray spectrum at similar to 100 GeV: Implication for dark matter annihilation signal in accordance with the 130 GeV gamma-ray line.PHYSICS LETTERS B,720(1-3),1-5.
MLA Feng, L,et al."PAMELA/Fermi-LAT electron cosmic ray spectrum at similar to 100 GeV: Implication for dark matter annihilation signal in accordance with the 130 GeV gamma-ray line".PHYSICS LETTERS B 720.1-3(2013):1-5.
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