It is shown that space-based gravitational-wave detectors such as DECIGO and/or the Big Bang Observer will provide us with invaluable information on the cosmic thermal history after inflation, and they will be able to determine the reheat temperature TR provided that it lies in the range preferred by the cosmological gravitino problem, TR ~ 105-9 GeV. Therefore it is strongly desired that they will be put into practice as soon as possible.
K. Nakayama et al., "Space-Based Gravitational-Wave Detectors Can Determine the Thermal History of the Early Universe," Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 77, no. 12, American Physical Society (APS), Jun 2008.
The definitive version is available at https://doi.org/10.1103/PhysRevD.77.124001
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© 2008 American Physical Society (APS), All rights reserved.
01 Jun 2008