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Author  |
Motohashi, H.; Hu, W. | ||||
| Title | Primordial black holes and slow-roll violation | Type | Journal Article | ||
| Year | 2017 | Publication | Physical Review D | Abbreviated Journal | Phys. Rev. D |
| Volume | 96 | Issue | 6 | Pages | 063503 - 9pp |
| Keywords | |||||
| Abstract | For primordial black holes (PBH) to be the dark matter in single-field inflation, the slow-roll approximation must be violated by at least O(1) in order to enhance the curvature power spectrum within the required number of e-folds between cosmic microwave background scales and PBH mass scales. Power spectrum predictions which rely on the inflaton remaining on the slow-roll attractor can fail dramatically leading to qualitatively incorrect conclusions in models like an inflection potential and misestimate the mass scale in a running mass model. We show that an optimized temporal evaluation of the Hubble slow-roll parameters to second order remains a good description for a wide range of PBH formation models where up to a 10(7) amplification of power occurs in 10 e-folds or more. | ||||
| Address | [Motohashi, Hayato] Univ Valencia, CSIC, Inst Fis Corpuscular IFIC, E-46980 Valencia, Spain | ||||
| Corporate Author | Thesis | ||||
| Publisher | Amer Physical Soc | Place of Publication | Editor | ||
| Language | English | Summary Language | Original Title | ||
| Series Editor | Series Title | Abbreviated Series Title | |||
| Series Volume | Series Issue | Edition | |||
| ISSN | 2470-0010 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | WOS:000409436800005 | Approved | no | ||
| Is ISI | yes | International Collaboration | yes | ||
| Call Number | IFIC @ pastor @ | Serial | 3286 | ||
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