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题名: Sensitivities of the IceCube DeepCore detector to signatures of low-mass dark matter in the Galactic halo
作者: Lee, FF ;  Lin, GL ;  Tsai, YLS
刊名: PHYSICAL REVIEW D
出版日期: 2013
卷号: 87, 期号:2, 页码:25003
关键词: ATMOSPHERIC NEUTRINOS ;  DWARF GALAXIES ;  LOCAL GROUP ;  TELESCOPE ;  CONSTRAINTS ;  PERFORMANCE ;  SPECTRUM ;  MODELS ;  FERMI ;  FLUX
学科分类: Physics
通讯作者: Lee, FF (reprint author), Natl Chiao Tung Univ, Inst Phys, Hsinchu 30010, Taiwan.
部门归属: [Lee, Fei-Fan; Lin, Guey-Lin] Natl Chiao Tung Univ, Inst Phys, Hsinchu 30010, Taiwan; [Tsai, Yue-Lin Sming] Natl Ctr Nucl Res, PL-00681 Warsaw, Poland; [Tsai, Yue-Lin Sming] Chinese Acad Sci, Kavli Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We discuss the event rate in the DeepCore array due to neutrino flux produced by annihilations and decays of Galactic dark matter. This event rate is calculated with a 10 GeV threshold energy, which is smaller than the threshold energy taken in previous works. Taking into account the background event rate due to the atmospheric neutrino flux, we evaluate the sensitivity of the DeepCore array for probing the dark matter annihilation cross section and decay time. The sensitivity studies include the annihilation modes chi chi -> b (b) over bar, tau(+)tau(-), mu(+)mu(-), and nu(nu) over bar, and decay modes chi -> b (b) over bar, tau(+)tau(-), mu(+)mu(-), and nu(nu) over bar. We compare our results with corresponding constraints derived from observations of WMAP, ACT, and Fermi-LAT. DOI: 10.1103/PhysRevD.87.025003
资助者: Research and Development Office, National Chiao-Tung University; National Science Council of Taiwan [99-2112-M-009-005-MY3]; Welcome Program of the Foundation for Polish Science
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000313001600013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15442
Appears in Collections:理论物理所2013年知识产出 _期刊论文

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Recommended Citation:
Lee, FF,Lin, GL,Tsai, YLS. Sensitivities of the IceCube DeepCore detector to signatures of low-mass dark matter in the Galactic halo[J]. PHYSICAL REVIEW D,2013,87(2):25003.
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