Abstract
A new detector, the Fermilab Holometer, consists of separate yet identical 39-meter Michelson interferometers. Strain sensitivity achieved is better than 10-21/Hz between 1 to 13 MHz from a 130-h data set. This measurement exceeds the sensitivity and frequency range made from previous high frequency gravitational wave experiments by many orders of magnitude. Constraints are placed on a stochastic background at 382 Hz resolution. The 3σ upper limit on ΩGW, the gravitational wave energy density normalized to the closure density, ranges from 5.6×1012 at 1 MHz to 8.4×1015 at 13 MHz. Another result from the same data set is a search for nearby primordial black hole binaries (PBHB). There are no detectable monochromatic PBHBs in the mass range 0.83-3.5×1021 g between the Earth and the Moon. Projections for a chirp search with the same data set increase the mass range to 0.59-2.5×1025 g and distances out to Jupiter. This result presents a new method for placing limits on a poorly constrained mass range of primordial black holes. Additionally, solar system searches for PBHBs place limits on their contribution to the total dark matter fraction.
| Original language | English (US) |
|---|---|
| Article number | 063002 |
| Journal | Physical Review D |
| Volume | 95 |
| Issue number | 6 |
| DOIs | |
| State | Published - Mar 3 2017 |
Funding
This work was supported by the Department of Energy at Fermilab under Contract No. DE-AC02-07CH11359 and the Early Career Research Program (FNAL FWP 11-03), and by grants from the John Templeton Foundation, the National Science Foundation (Grants No. PHY-1205254 and No. DGE-1144082), NASA (Grant No. NNX09AR38G), the Fermi Research Alliance, the Kavli Institute for Cosmological Physics, University of Chicago/Fermilab Strategic Collaborative Initiatives, Science Support Consortium, and the Universities Research Association Visiting Scholars Program. B.K. was supported by National Science Foundation Graduate Research Fellowship Program (DGE-0909667), Universities Research Association Visiting Scholars Program and the Ford Foundation. O.K. was supported by the Basic Science Research Program (Grant No. NRF-2016R1D1A1B03934333) of the National Research Foundation of Korea (NRF) funded by the Ministry of Education. L.M. was supported by National Science Foundation Graduate Research Fellowship Program (DGE-0638477).
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)