Effect of a late decaying scalar on the neutralino relic density
By G. Gelmini, P. Gondolo, A. Soldatenko, C. Yaguna. 2006
160 citations recorded by the source corpus.
If the energy density of the Universe before nucleosynthesis is dominated by a scalar field {phi} that decays and reheats the plasma to a temperature T{sub RH} smaller than the standard neutralino freeze-out temperature, the neutralino relic density differs from its standard value. In this case, the relic density depends on two additional parameters: T{sub RH}, and the number of neutralinos produced per {phi} decay per unit mass of the {phi} field. In this paper, we numerically study the neutralino relic density as a function of these reheating parameters within minimal supersymmetric standard models and show that the dark matter constraint can almost always be satisfied.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/e0c37d4e5205f14099a3d1b403264589d55970ea
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
- M. Raidal
- G. Arcadi
- A. Berlin
- Miguel Escudero
- Meng-Xiang Lin
- Abdelhak Djouadi
- D. Hooper
- Miguel Escudero Abenza
In Nuclear and High Energy Physics
- M. Raidal
- G. Arcadi
- A. Berlin
- Miguel Escudero
- Meng-Xiang Lin
- Abdelhak Djouadi
- D. Hooper
- Miguel Escudero Abenza
Citations in the corpus
- Toward (finally!) ruling out Z and Higgs mediated dark matter models (2016, background): “Examples of such scenarios include those in which the abundance of dark matter is depleted as a result of an out-of-equilibrium decay [52–58] or a period of late-time inflation [59–63].”
- Dark Matter through the Higgs portal (2019, background): “through a non–thermal mechanism and/or modifications of the cosmological history of the Universe [274–278]) even outside the “PLANCK” isocontours.”