Formation of MACHO-Primordial Black Holes in Inflationary Cosmology

Abstract

As a nonbaryonic explanation of massive compact halo objects, a phenomenological model is presented which predicts formation of primordial black holes at a desired mass scale. The required feature of initial density fluctuation is realized making use of the primordially isocurvature fluctuation generated in an inflationary universe model with multiple scalar fields.

19 pages, Uji Reseach Center will move to the main campus on 9/18

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