http://arxiv.org/abs/1903.07337
We show that the effect of initial non-Gaussian clustering can significantly enhance the event rate for primordial black hole (PBH) coalescence. The impact of such clustering is studied in a specific scenario of multi-stream inflation. Initial clustering enables the possibility of detecting massive PBH coalescence by space-based gravitational wave interferometers such as LISA and DECIGO/BBO. The parameter regime for the ground-based detectors to detect PBH coalescence is also extended.
Q. Ding, T. Nakama, J. Silk, et. al.
Tue, 19 Mar 19
15/100
Comments: 6 pages, 2 figures
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