Jump Starting the Dark Sector with a Phase Transition

Abstract

We study the possibility to populate the dark sector through a phase transition. We will consider secluded dark sectors made of gauge theories, Randall-Sundrum scenarios and conformally coupled elementary particles. These sectors have in common the fact that the action is approximately Weyl invariant, implying that particle production due to time dependent background is strongly suppressed. In particular no significant production takes place during inflation allowing to avoid strong isocurvature constraints from CMB. As we will show, if the scale of inflation is large compared to the dynamical mass scale, these sectors automatically undergo a phase transition that in the simplest cases is controlled by the Hubble parameter. If the phase transition takes place during reheating or radiation the abundance obtained can be larger than particle production and production from the SM plasma. For phase transitions completing during radiation domination, the DM mass is predicted in the range $10^8$ GeV while larger values are required for phase transitions occurring during reheating.

arXiv comment27 pages, 4 figures. v3) added gravitational particle production of massive Weyl fermion in appendix B

References in corpus (38)

• An Alternative to Compactification
• Modulus Stabilization with Bulk Fields
• The glueball spectrum from an anisotropic lattice study
• Holography and Phenomenology
• Comments on the Holographic Picture of the Randall-Sundrum Model
• Vector Dark Matter from Inflationary Fluctuations
• Superheavy dark matter
• Self-Interacting Dark Matter from a Non-Abelian Hidden Sector
• Breaking Of Conformal Invariance And Electromagnetic Field Generation In The Universe
• Brane-world creation and black holes
• Planckian Interacting Massive Particles as Dark Matter
• Precision SU(3) lattice thermodynamics for a large temperature range
• Composite strongly interacting dark matter
• Holography and the Electroweak Phase Transition
• Production of Purely Gravitational Dark Matter: The Case of Fermion and Vector Boson
• Randall-Sundrum II Cosmology, AdS/CFT, and the Bulk Black Hole
• Production of Purely Gravitational Dark Matter
• Hidden SU(N) Glueball Dark Matter
• Gravitational Production of Dark Matter during Reheating
• Gravitational Effects on Inflaton Decay
• Isocurvature constraints on gravitationally produced superheavy dark matter
• SU(3) Latent Heat and Surface Tension from Tree Level and Tadpole Improved Actions
• Gravitational production of super-Hubble-mass particles: an analytic approach
• Pure Gravitational Dark Matter, Its Mass and Signatures
• Cosmological Phase Transition of Spontaneous Confinement
• Cosmological Bounds on Non-Abelian Dark Forces
• Boltzmann or Bogoliubov? Approaches Compared in Gravitational Particle Production
• Gravitational Production of a Conformal Dark Sector
• Non-adiabatic cosmological production of ultra-light Dark Matter
• Cosmic strings from pure Yang-Mills theory
• Dark Photon Dark Matter without Stueckelberg Mass
• Gravitational production of nearly thermal fermionic Dark Matter
• Exploring the Universe with Dark Light Scalars
• Quantum interference in gravitational particle production
• Graviton Creation by Small Scale Factor Oscillations in an Expanding Universe
• Gravitational misalignment mechanism of Dark Matter production
• To $B$ or not to $B$: Primordial magnetic fields from Weyl anomaly
• General Freeze-in and Freeze-out