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Neutrino signals from ultracompact minihalos and constraints on the primordial curvature perturbation
Yang, YP; Yang, GL; Zong, HS; Yang, YP (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
2013
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号87期号:10页码:103525
摘要Compared with that of standard dark matter halos, the density profile of the recently proposed new kind of dark matter structure named ultracompact minihalos (UCMHs) is steeper and its formation time is earlier. If the dark matter is composed of weakly interactive massive particles, the potential signals, e. g., neutrinos, from UCMHs due to dark matter annihilation would be detected by IceCube/DeepCore or other detectors and such signals would have a very useful complementarity of gamma-ray observations. On the other hand, the formation of UCMHs is related to primordial curvature perturbations on the smaller scales. So constraints on the abundance of UCMHs can be used to give a limit on the perturbations on these scales. In previous works in the literature, the authors focused on the gamma-ray signals from UCMHs due to dark matter annihilation. In this work, we investigate the neutrino signals from nearby UCMHs. Although no excess of neutrino signals from dark matter annihilation has been observed, the constraints on the abundance of UCMHs can be obtained and these constraints can be translated into the limit on the primordial curvature perturbations on small scales.
部门归属[Yang, Yupeng; Yang, Guilin; Zong, Hongshi] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China; [Yang, Yupeng] Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China; [Yang, Yupeng; Yang, Guilin; Zong, Hongshi] Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China; [Zong, Hongshi] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
关键词Dark-matter Power Spectrum Probe Universe Telescope Abundance
学科领域Physics
资助者National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002]
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收录类别SCI
语种英语
资助者National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002] ; National Natural Science Foundation of China [10935001, 11275097, 11075075]; Research Fund for the Doctoral Program of Higher Education [2012009111002]
WOS记录号WOS:000319656400006
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被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15358
专题理论物理所SCI论文
通讯作者Yang, YP (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.
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Yang, YP,Yang, GL,Zong, HS,et al. Neutrino signals from ultracompact minihalos and constraints on the primordial curvature perturbation[J]. PHYSICAL REVIEW D,2013,87(10):103525.
APA Yang, YP,Yang, GL,Zong, HS,&Yang, YP .(2013).Neutrino signals from ultracompact minihalos and constraints on the primordial curvature perturbation.PHYSICAL REVIEW D,87(10),103525.
MLA Yang, YP,et al."Neutrino signals from ultracompact minihalos and constraints on the primordial curvature perturbation".PHYSICAL REVIEW D 87.10(2013):103525.
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