Exact Cross Sections for the Neutralino WIMP Pair-Annihilation
High Energy Physics - Phenomenology
2014-11-17 v2
Abstract
We derive a full set of exact, analytic expressions for the annihilation of the lightest neutralino pairs into all two-body tree-level final states in the framework of minimal supersymmetry. We make no simplifying assumptions about the neutralino nor about sfermion masses and mixings other than the absence of explicit CP--violating terms. The expressions should be particularly useful in computing the neutralino WIMP relic abundance without the usual approximation of partial wave expansion.
Cite
@article{arxiv.hep-ph/0202009,
title = {Exact Cross Sections for the Neutralino WIMP Pair-Annihilation},
author = {Takeshi Nihei and Leszek Roszkowski and Roberto Ruiz de Austri},
journal= {arXiv preprint arXiv:hep-ph/0202009},
year = {2014}
}
Comments
LaTeX, 46 pages, no figures. Several minor typographical errors corrected