Big-bang nucleosynthesis with a long-lived charged massive particle including 4He spallation processes in a bound state
Big-bang nucleosynthesis with a long-lived charged massive particle including 4He spallation processes in a bound state
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使用长寿命带电大质量粒子进行大爆炸核合成，包括束缚态下的 4He 散裂过程
DOI：
10.1063/1.4742122
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
and Koichi Yazaki
中科院分区：
文献类型：
--
作者：
Toshifumi Jittoh;Kazunori Kohri;Masafumi Koike;Joe Sato;Kenichi Sugai;Masato Yamanaka;and Koichi Yazaki
我们在超对称标准模型中提出了由长寿命状态引起的氦-4散裂过程，并研究了这一过程对轻元素丰度的影响。我们发现，只要氦-4散裂过程的相空间是开放的，它们就比状态催化聚变更重要，从而约束了状态性质。
We propose helium-4 spallation processes induced by long-lived stau in supersymmetric standard models, and investigate an impact of the processes on light elements abundances. We show that, as long as the phase space of helium-4 spallation processes is open, they are more important than stau-catalyzed fusion and hence constrain the stau property.