论文标题

大爆角核合成,亚物质巨大的衰减颗粒

Big-bang nucleosynthesis with sub-GeV massive decaying particles

论文作者

Kawasaki, Masahiro, Kohri, Kazunori, Moroi, Takeo, Murai, Kai, Murayama, Hitoshi

论文摘要

我们考虑了能量光子和电子(或正电子)对大爆角核合成的影响。我们研究了早期宇宙中光元的光解离,特别注意注射能是亚gev,并在大规模衰减粒子的原始丰度上得出上限,这是其寿命的函数。在此框架中,我们还讨论了$^7 $ li问题的解决方案。

We consider the effects of the injections of energetic photon and electron (or positron) on the big-bang nucleosynthesis. We study the photodissociation of light elements in the early Universe paying particular attention to the case that the injection energy is sub-GeV and derive upper bounds on the primordial abundances of the massive decaying particle as a function of its lifetime. We also discuss a solution of the $^7$Li problem in this framework.

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