Non-thermal production of neutralino cold dark matter from cosmic string decays
Jeannerot, R; Zhang, XM; Brandenberger, R
刊名JOURNAL OF HIGH ENERGY PHYSICS
1999
期号12页码:3
关键词cosmology of theories beyond the SM cosmological phase transitions dark matter physics of the early universe
学科分类Physics
通讯作者Int Ctr Theoret Phys, I-34014 Trieste, Italy ; CCAST, World Lab, Beijing 100080, Peoples R China ; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China ; Brown Univ, Dept Phys, Providence, RI 02912 USA
文章类型Article
英文摘要Cosmic strings form in many extensions of the MSSM, in particular in models with an extra U(1) gauge symmetry. We propose a new production mechanism for neutralino cold dark matter in such models. We show that if the strings forming scale is less than about 10(8) GeV, the dark matter produced from strings can overclose the universe. The mass of the new U(1) gauge boson must be much larger than the Fermi scale which makes it unobservable in upcoming accelerator experiments. In supersymmetric models with an extra UB-L(1) gauge symmetry, the requirement of Omega less than or equal to 1 puts an upper bound on the neutrino mass of about 30 eV provided neutrino masses are generated by the see-saw mechanism.
类目[WOS]Physics, Particles & Fields
研究领域[WOS]Physics
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语种英语
WOS记录号WOS:000085757200003
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被引频次:45[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/311005/240347
专题中国科学院高能物理研究所_理论物理室_期刊论文
作者单位中国科学院高能物理研究所
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Jeannerot, R,Zhang, XM,Brandenberger, R. Non-thermal production of neutralino cold dark matter from cosmic string decays[J]. JOURNAL OF HIGH ENERGY PHYSICS,1999(12):3.
APA Jeannerot, R,Zhang, XM,&Brandenberger, R.(1999).Non-thermal production of neutralino cold dark matter from cosmic string decays.JOURNAL OF HIGH ENERGY PHYSICS(12),3.
MLA Jeannerot, R,et al."Non-thermal production of neutralino cold dark matter from cosmic string decays".JOURNAL OF HIGH ENERGY PHYSICS .12(1999):3.
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