TL;DR
This paper explores mirror matter as a self-collisional dark matter candidate, discussing its potential astrophysical signatures and implications for cosmology, including structure formation and cosmic microwave background observations.
Contribution
It provides an analysis of astrophysical signatures of mirror dark matter, highlighting how it can be tested through cosmological observations and its effects on the Universe's evolution.
Findings
Mirror matter interacts only via gravity, making it a naturally 'dark' candidate.
Astrophysical signatures include effects on Big Bang nucleosynthesis and large-scale structure.
Potential observable impacts on cosmic microwave background and structure formation.
Abstract
Mirror matter is a self-collisional dark matter candidate. If exact mirror parity is a conserved symmetry of the nature, there could exist a parallel hidden (mirror) sector of the Universe which has the same kind of particles and the same physical laws of our (visible) sector. The two sectors interact each other only via gravity, therefore mirror matter is naturally "dark". The most promising way to test this dark matter candidate is to look at its astrophysical signatures, as Big Bang nucleosynthesis, primordial structure formation and evolution, cosmic microwave background and large scale structure power spectra.
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