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

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

2011-05-07

arxiv.org/abs/1105.1431v2

Phys.Rev.D84:035008,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 4 figures, 1 table, references added, all figures corrected

Scientific paper

10.1103/PhysRevD.84.035008

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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