How dark matter cares about topological superstrings
Abstract
Non-trivial toplogical properties of string world-sheets with three boundaries can give rise to superpotentials which preserve supersymmetry but violate R-symmetry by two units. This results in four point functions which permit s-wave annihilation of two neutralinos into gauge bosons. If the topological partition function is such as to allow saturation of the WMAP dark matter density for low string scales (M_s ~ 2 TeV), the annihilation into monochromatic gamma rays is predicted to lie about a factor of 2 below the current H.E.S.S. measurement of gamma ray flux from the galactic center. Thus, it may be detectable in the next round of gamma ray observations.
Cite
@article{arxiv.1007.0539,
title = {How dark matter cares about topological superstrings},
author = {Luis A. Anchordoqui},
journal= {arXiv preprint arXiv:1007.0539},
year = {2010}
}
Comments
Proceedings XVI International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2010); Fermilab, June28 to July 2, 2010; "Paper # C18"