Big Bang and Heavy Particles

Abstract

A possibility of existence of ultra-heavy (quasi)stable particles, mechanisms leading to their large life-time, their production in the early universe, and cosmological manifestations are reviewed.

Comments: 14 pages, presented at INFN Eloisatron Project, 44th Workshop, QCD at Cosmic Energies, August 29 - September 5, 2004, Erice, Italy