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arXiv · 1105.1431

Big-bang nucleosynthesis with a long-lived charged massive particle including $^4$He spallation processes

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.

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Toshifumi Jittoh, Kazunori Kohri, Masafumi Koike, Joe Sato, Kenichi Sugai, Masato Yamanaka, Koichi Yazaki. 2011-06-15. Big-bang nucleosynthesis with a long-lived charged massive particle including $^4$He spallation processes. https://doi.org/10.1103/physrevd.84.035008

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