Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
High Energy Physics - Phenomenology
2008-11-26 v2 Astrophysics
Abstract
We consider constraints on long-lived charged scalar leptons \tilde{l}^\pm in supersymmetric models, where gravitino is the lightest superparticle. We study the decay and hadronization processes of \tilde{l}^\pm. We also take into account the significant enhancement of Li6 production due to the formation of the bound-state (He4 \tilde{l}^-); for this purpose, we use the reaction rate given by the most recent calculation based on coupled-channel method.
Cite
@article{arxiv.hep-ph/0703122,
title = {Big-Bang Nucleosynthesis with Long-Lived Charged Slepton},
author = {Masahiro Kawasaki and Kazunori Kohri and Takeo Moroi},
journal= {arXiv preprint arXiv:hep-ph/0703122},
year = {2008}
}
Comments
9 pages, 3 figures