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arXiv · 1209.1951

Big-bang nucleosynthesis with a long-lived CHAMP including He4 spallation process

Toshifumi Jittoh·Kazunori Kohri·Masafumi Koike·Joe Sato·Kenichi Sugai·Masato Yamanaka·Koichi Yazaki
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Abstract

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. This talk is based on works (Jittoh et al., 2011).

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Toshifumi Jittoh, Kazunori Kohri, Masafumi Koike, Joe Sato, Kenichi Sugai, Masato Yamanaka, Koichi Yazaki. 2012-09-10. Big-bang nucleosynthesis with a long-lived CHAMP including He4 spallation process. https://arxiv.org/abs/1209.1951

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