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High Energy Physics - Phenomenology

arXiv:hep-ph/0008328 (hep-ph)
[Submitted on 31 Aug 2000 (v1), last revised 11 Jan 2001 (this version, v2)]

Title:Inflationary preheating and primordial black holes

Authors:Bruce A. Bassett (Portsmouth), Shinji Tsujikawa (Waseda)
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Abstract: Preheating after inflation may over-produce primordial black holes (PBH's) in many regions of parameter space. As an example we study two-field models with a massless self-interacting inflaton, taking into account second order field and metric backreaction effects as spatial averages. We find that a complex quilt of parameter regions above the Gaussian PBH over-production threshold emerges due to the enhancement of curvature perturbations on all scales. It should be possible to constrain realistic models of inflation through PBH over-production although many issues, such as rescattering and non-Gaussianity, remain unsolved or unexplored.
Comments: 7 pages, 6 figures. Fig 6 is added to show the weak dependence of the mass variance on the initial condition
Subjects: High Energy Physics - Phenomenology (hep-ph); Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th)
Report number: RCG-00/27, WUAP-00/22
Cite as: arXiv:hep-ph/0008328
  (or arXiv:hep-ph/0008328v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0008328
Journal reference: Phys.Rev. D63 (2001) 123503
Related DOI: https://doi.org/10.1103/PhysRevD.63.123503

Submission history

From: Shinji Tsujikawa [view email]
[v1] Thu, 31 Aug 2000 09:09:09 UTC (296 KB)
[v2] Thu, 11 Jan 2001 04:28:30 UTC (305 KB)
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