Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2000-04-28
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, no figure,argument on PBH formation is revised, typos are corrected
Scientific paper
We discuss the possibility that the vacuum is dynamically determined in the history of the universe. The point is that some of the bubbles with a certain vacuum shrink by the evolution of the universe via gravity and may become black holes. When the temperature of the phase transition T_{PT} is higher than 10^9 GeV, these black holes evaporate until now. If T_{PT}<10^9 GeV, we may see these black holes in our universe. It is interesting that in many cases false vacua are favored in the context of cosmology. By using this argument, supersymmetry(SUSY), if it exists, can be broken cosmologically. We can guess the SUSY breaking scale from the mass of the black holes.
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