Oscillations of solar atmosphere neutrinos
Oscillations of solar atmosphere neutrinos
复制标题
太阳大气中微子的振荡
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
P. Serpico
中科院分区：
文献类型：
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作者：
G. Fogli;E. Lisi;A. Mirizzi;D. Montanino;P. Serpico
太阳是高能中微子（$E\ensuremath{\gtrsim}10\text{ }\text{ }\mathrm{GeV}$）的来源，由宇宙射线在太阳大气中相互作用产生。我们研究了三味振荡（在真空和物质）对太阳大气中微子的影响，并计算了它们在地球上的可观测通量，以及它们在水或冰中的更大尺度探测器中的事件率。我们发现，奇特的三味振荡效应的物质，它可以发生在太阳大气中微子探测的能量范围内，显着抑制平均生产区域和中微子和反中微子组件。特别是，我们发现，在太阳和地球的中微子通量之间的关系可以近似表示为相位平均真空振荡，由一个单一的混合参数（角${\ensuremath{\theta}}}_{23}$）。
The Sun is a source of high-energy neutrinos ($E\ensuremath{\gtrsim}10\text{ }\text{ }\mathrm{GeV}$) produced by cosmic ray interactions in the solar atmosphere. We study the impact of three-flavor oscillations (in vacuum and in matter) on solar atmosphere neutrinos, and calculate their observable fluxes at Earth, as well as their event rates in a kilometer-scale detector in water or ice. We find that peculiar three-flavor oscillation effects in matter, which can occur in the energy range probed by solar atmosphere neutrinos, are significantly suppressed by averaging over the production region and over the neutrino and antineutrino components. In particular, we find that the relation between the neutrino fluxes at the Sun and at the Earth can be approximately expressed in terms of phase-averaged vacuum oscillations, dominated by a single mixing parameter (the angle ${\ensuremath{\theta}}_{23}$).