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arXiv 0803.4319astro-phhep-ph
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稠密中微子系统中的多角不稳定性

The multi-angle instability in dense neutrino systems

R. F. Sawyer

摘要:

我们通过标准模型耦合,假设一个传统的质量矩阵,计算中微子云相互作用的味道交换率。对于强度,味道和光谱之间的关系有一个角度的依赖性的情况下,我们发现在演化方程的不稳定性和大大加快味道交换。通过检查线性扰动简单的解决方案的不稳定性进行分类,其影响表现在完整的数值解系统。应用是在超新星核心的中微子表面下的区域。

英文摘要:

We calculate rates of flavor exchange within clouds of neutrinos interacting with each other through the standard model coupling, assuming a conventional mass matrix. For cases in which there is an angular dependence in the relation among intensity, flavor and spectrum, we find instabilities in the evolution equations and greatly speeded-up flavor exchange. The instabilities are categorized by examining linear perturbations to simple solutions, and their effects are exhibited in complete numerical solutions to the system. The application is to the region just under the neutrino surfaces in the supernova core.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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