Supersymmetric superheavy dark matter

Abstract

We propose the lightest supersymmetric particle (LSP) as a well-suited candidate for superheavy dark matter (SHDM). Various production mechanisms at the end of inflation can produce SHDM with the correct abundance, ${\Omega }_{LSP}{h}^2\sim 0.1$, if its mass is sufficiently high. In particular, gravitational production requires that the mass $m_{LSP}$ of the LSP is above $3\times 10^{11}GeV$. Weak interactions remain perturbative despite the large mass hierarchy, $m_{LSP}\gg m_Z$, because of the special decoupling properties of supersymmetry. As a result the model is predictive and we discuss the relevant cosmological processes for the case of a superheavy neutralino within this scheme.

9 pages; v2: references added, matches version to be published

References in corpus (4)

• The Well-Tempered Neutralino
• On the status of superheavy dark matter
• Super Heavy Dark Matter and UHECR Anisotropy at Low Energy
• The Suppression of Neutralino Annihilation into Zh

Cited by in corpus (14)

• On the role of electroweak bremsstrahlung for indirect dark matter signatures
• Small-scale clumps of dark matter
• Gravitational Fermion Production in Inflationary Cosmology
• Physical laboratory at the center of the Galaxy
• Neutrino masses and superheavy dark matter in the 3-3-1-1 model
• Isocurvature Perturbations and Non-Gaussianity of Gravitationally Produced Nonthermal Dark Matter
• Fermionic Isocurvature Perturbations
• PeV scale Supersymmetry breaking and the IceCube neutrino flux
• Annihilations of superheavy dark matter in superdense clumps
• Computation of Gravitational Particle Production Using Adiabatic Invariants
• Quadratic Isocurvature Cross-Correlation, Ward Identity, and Dark Matter
• Reheating after inflation by supersymmetry breaking
• Double Higgs mechanisms, supermassive stable particles and the vacuum energy
• Mesotuned WIMPs and Avoided Deconfinement