pith. machine review for the scientific record. sign in

arxiv: hep-ph/0602230 · v1 · submitted 2006-02-24 · ✦ hep-ph

Recognition: unknown

Neutralino with the Right Cold Dark Matter Abundance in (Almost) Any Supersymmetric Model

Authors on Pith no claims yet
classification ✦ hep-ph
keywords densityneutralinostemperaturecoldcombinationdarkdecayfield
0
0 comments X
read the original abstract

We consider non-standard cosmological models in which the late decay of a scalar field $\phi$ reheats the Universe to a low reheating temperature, between 5 MeV and the standard freeze-out temperature of neutralinos of mass $m_{\chi}$. We point out that in these models all neutralinos with standard density $\Omega_{\rm std} \gtrsim 10^{-5} (100 {\rm GeV}/m_\chi)$ can have the density of cold dark matter, provided the right combination of the following two parameters can be achieved in the high energy theory: the reheating temperature, and the ratio of the number of neutralinos produced per $\phi$ decay over the $\phi$ field mass. We present the ranges of these parameters where a combination of thermal and non-thermal neutralino production leads to the desired density, as functions of $\Omega_{\rm std}$ and $m_{\chi}$.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Probing the Inert Doublet Dark Matter with Stellar-Mass Black Hole Mini-Spikes

    hep-ph 2026-05 unverdicted novelty 5.0

    Fermi LAT data on mini-spikes around stellar-mass black holes rules out substantial regions of Inert Doublet Model dark matter parameter space, especially at multi-TeV masses.

  2. Dark Matter as a Source for Lepton Flavor Violation

    hep-ph 2026-05 unverdicted novelty 4.0

    A dark matter fermion is shown to simultaneously explain the relic density, satisfy direct detection and collider bounds, and produce observable rates for muon-to-electron transitions in a viable parameter region.