Publication Type |
Journal Article |
School or College |
College of Science |
Department |
Physics |
Creator |
Gondolo, Paolo |
Other Author |
Gelmini, Graciela |
Title |
Neutralino with the right cold dark matter abundance in (almost) any supersymmetric model |
Date |
2006-07 |
Description |
We consider nonstandard cosmological models in which the late decay of a scalar field Ø reheats the Universe to a low reheating temperature, between 5 MeV and the standard freeze-out temperature of neutralinos of mass mx. We point out that in these models all neutralinos with standard density Ώstd 10≥5 (100 GeV/mx) 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 Ø decay over the Ø field mass. We present the ranges of these parameters where a combination of thermal and nonthermal neutralino production leads to the desired density, as functions of Ώstd and mx. |
Type |
Text |
Publisher |
American Physical Society |
Journal Title |
Physical Review D |
Volume |
74 |
Issue |
2 |
DOI |
10.1103/PhysRevD.74.023510 |
citatation_issn |
1550-7998 |
Subject |
Neutralinos; Reheating temperature |
Subject LCSH |
Dark matter (Astronomy); Particles (Nuclear physics); Supersymmetry |
Language |
eng |
Bibliographic Citation |
Gelmini, G., & Gondolo, P. (2006). Neutralino with the right cold dark matter abundance in (almost) any supersymmetric model. Physical Review D, 74, 023510. |
Rights Management |
(c) American Physical Society http://dx.doi.org/10.1103/PhysRevD.74.023510 |
Format Medium |
application/pdf |
Format Extent |
166,362 bytes |
Identifier |
ir-main,9196 |
ARK |
ark:/87278/s68s57g0 |
Setname |
ir_uspace |
ID |
706593 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s68s57g0 |