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Paper detail

Big-bang nucleosynthesis with sub-GeV massive decaying particles

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.

preprint2020arXivOpen access
Masahiro KawasakiKazunori KohriTakeo MoroiKai MuraiHitoshi Murayama
astro-ph.COhep-ph
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Masahiro KawasakiKazunori KohriTakeo MoroiKai MuraiHitoshi Murayama

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