Structure formation, CMB and LSS in a mirror dark matter scenario

Abstract

In the mirror world hypothesis the mirror baryonic component emerges as a possible dark matter candidate. Here we study the behaviour of the mirror dark matter and the differences from the more familiar CDM candidate for structure formation, cosmic microwave background and large scale structure. We show mirror models for CMB and LSS power spectra and compare them with observations, obtaining bounds on the mirror parameter space.

Comments: 8 pages, 1 figure; proceeding of the conference 'Frontier Science 2004' (Frascati, Italy, 14-19 June 2004)