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Exploration of decaying dark matter in a left-right symmetric model
Guo, Wan-Lei; Wu, Yue-Liang; Zhou, Yu-Feng; Guo, WL , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
2010
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号81期号:7页码:-
摘要SU(2)(L) triplet scalars appear in models motivated for the left-right symmetry, neutrino masses, and dark matter (DM), etc. If the triplets are the main decay products of the DM particle, and carry nonzero lepton numbers, they may decay dominantly into lepton pairs, which can naturally explain the current experimental results reported by PAMELA and Fermi-LAT or ATIC. We discuss this possibility in an extended left-right symmetric model in which the decay of the DM particle is induced by tiny soft charge-conjugation (C) violating interactions, and calculate the spectra for cosmic-ray positrons, neutrinos, and gamma rays. We show that the DM signals in the flux of high energy neutrinos can be significantly enhanced, as the triplets couple to both charged leptons and neutrinos with the same strength. In this scenario, the predicted neutrino-induced muon flux can be several times larger than the case in which the DM particle only directly decays into charged leptons. In addition, the charged components of the triplet may give an extra contribution to the high energy gamma rays through an internal bremsstrahlung process, which depends on the mass hierarchy between the DM particle and the triplet scalars.
部门归属[Guo, WL; Wu, YL; Zhou, YF] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
关键词Cosmic-ray Positron Cp Violation Ii Seesaw Parity Pamela Propagation Abundance Energies Fraction Signals
学科领域Physics
资助者National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science
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收录类别SCI
资助者National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science ; National Basic Research Program of China[2010CB833000]; National Nature Science Foundation of China (NSFC)[10975170, 10821504, 10905084]; Chinese Academy of Science
WOS记录号WOS:000277201900074
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被引频次:21[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/311006/5133
专题理论物理所SCI论文
通讯作者Guo, WL , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
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Guo, Wan-Lei,Wu, Yue-Liang,Zhou, Yu-Feng,et al. Exploration of decaying dark matter in a left-right symmetric model[J]. PHYSICAL REVIEW D,2010,81(7):-.
APA Guo, Wan-Lei,Wu, Yue-Liang,Zhou, Yu-Feng,&Guo, WL , Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China.(2010).Exploration of decaying dark matter in a left-right symmetric model.PHYSICAL REVIEW D,81(7),-.
MLA Guo, Wan-Lei,et al."Exploration of decaying dark matter in a left-right symmetric model".PHYSICAL REVIEW D 81.7(2010):-.
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