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A Model of Anthropic Reasoning, Addressing the Dark to Ordinary Matter Coincidence | | Frank Wilczek
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15 Aug 2004 | | Subject: | hep-ph astro-ph hep-th | | Abstract: | If inflation occurs after the breaking of Peccei-Quinn symmetry then large values of the breaking scale $F$, which are forbidden in conventional axion cosmology, are permitted, provided that we inhabit a region of the Multiverse where the initial misalignment is small. Regions having approximately this initial misalignment may occupy a small volume of the Multiverse, but they contain a large fraction of potential observers. This scenario has many consequences, including a possible explanation of the approximate equality of dark and baryon matter densities. | | Source: | arXiv, hep-ph/0408167 | | Services: | Forum | Review | PDF | Favorites | |
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