Reconciling present neutrino puzzles: Sterile neutrinos as mirror neutrinos.
Reconciling present neutrino puzzles: Sterile neutrinos as mirror neutrinos.
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协调当前的中微子难题：惰性中微子作为镜像中微子。
DOI：
10.1103/physrevd.52.6607
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
R. Mohapatra
中科院分区：
文献类型：
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作者：
Z. Berezhiani;R. Mohapatra
我们认为，中微子物理学中最近的难题，即太阳和大气中微子赤字、LSND 报告的可能中微子振荡以及中微子作为热暗物质，都可以通过假设存在由“电弱”规范对称性描述的镜像世界来自然地解释。 [SU(2)\ifmmode\times\else\texttimes\fi{}U(1)]\ensuremath{'}，其破坏规模比标准 SU(2)\ifmmode\times\else\texttimes\fi{}U(1) 模型的规模大约 30 倍。此类模型的动机是超弦 ${\mathrm{E}}_{8}$\ifmmode\times\else\texttimes\fi{}${\mathrm{E}}_{8}^{\ensuremath{'}}$ 理论。该模型还表明，宇宙中的大部分暗物质可能是由 keV 镜像粒子组成的暖暗物质，而不是传统的冷暗物质。
We suggest that recent puzzles in neutrino physics, i.e., the solar and atmospheric neutrino deficits, possible neutrino oscillations reported by the LSND, and neutrinos as hot dark matter, can all be naturally explained by assuming the existence of a mirror world described by an ``electroweak'' gauge symmetry [SU(2)\ifmmode\times\else\texttimes\fi{}U(1)]\ensuremath{'}, with the breaking scale larger by about a factor of 30 than the scale of the standard SU(2)\ifmmode\times\else\texttimes\fi{}U(1) model. Such models are motivated by the superstring ${\mathrm{E}}_{8}$\ifmmode\times\else\texttimes\fi{}${\mathrm{E}}_{8}^{\ensuremath{'}}$ theories. The model also suggests that the bulk of the dark matter in the universe may be warm dark matter consisting of keV mirror particles rather than the conventional cold dark matter.