Big-bang nucleosynthesis through bound-state effects with a long-lived slepton in the NMSSM
High Energy Physics - Phenomenology
2014-08-13 v2 Cosmology and Nongalactic Astrophysics
Abstract
We show that the Li problems can be solved in the next-to-minimal supersymmetric standard model where the slepton as the next-to-lightest SUSY particle is very long-lived. Such a long-lived slepton induces exotic nuclear reactions in big-bang nucleosynthesis, and destroys and produces the Li and Li nuclei via bound state formation. We study cases where the lightest SUSY particle is singlino-like neutralino and bino-like neutralino to present allowed regions in the parameter space which is consistent with the observations on the dark matter and the Higgs mass.
Keywords
Cite
@article{arxiv.1403.1561,
title = {Big-bang nucleosynthesis through bound-state effects with a long-lived slepton in the NMSSM},
author = {Kazunori Kohri and Masafumi Koike and Yasufumi Konishi and Shingo Ohta and Joe Sato and Takashi Shimomura and Kenichi Sugai and Masato Yamanaka},
journal= {arXiv preprint arXiv:1403.1561},
year = {2014}
}
Comments
23 pages, 36 figures; corrected typos and added report numbers, acknowledgments and references