Big-bang nucleosynthesis with a long-lived charged massive particle including $^4$He spallation processes
High Energy Physics - Phenomenology
2011-09-08 v2 Cosmology and Nongalactic Astrophysics
Nuclear Theory
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.
Keywords
Cite
@article{arxiv.1105.1431,
title = {Big-bang nucleosynthesis with a long-lived charged massive particle including $^4$He spallation processes},
author = {Toshifumi Jittoh and Kazunori Kohri and Masafumi Koike and Joe Sato and Kenichi Sugai and Masato Yamanaka and Koichi Yazaki},
journal= {arXiv preprint arXiv:1105.1431},
year = {2011}
}
Comments
12 pages, 4 figures, 1 table, references added, all figures corrected