Cosmoparticle physics as the physical basis for modern cosmology

Abstract

Abstract Cosmoparticle physics has appeared as a natural result of the internal development of cosmology, looking for physical grounds for inflation, baryosynthesis and nonbaryonic dark matter, and of particle physics, going beyond the standard model of particle interactions. Its aim is to study the physical basis of modern cosmology in the combination of indirect cosmological, astrophysical and physical effects. The ideas of new particles and fields, predicted by particle theory, and on their cosmological impact are discussed, as well as the methods of cosmoparticle physics to probe these ideas are considered with special analysis of physical mechanisms for inflation, baryosynthesis and nonbaryonic dark matter. These mechanisms are shown to reflect the main principle of modern cosmology, putting instead of formal parameters of cosmological models physical processes governing the evolution of Big Bang Universe. Their realization on the basis of particle theory induces additional model-dependent predictions, accessible to various methods of cosmoparticle physics. The power of these methods is illustrated in the example of a gauge model with broken family symmetry, on which the horizontal unification is based, possessing quantitatively date physical grounds for inflation, baryosynthesis and effectively multicomponent dark matter scenarios.