Detecting a relic background of scalar waves with LIGO

Details Detecting a relic background of scalar waves with LIGO Detecting a relic background of scalar waves with LIGO

2001-03-12

arxiv.org/abs/gr-qc/0103035v1

Phys.Rev. D64 (2001) 064009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, uses revtex

Scientific paper

10.1103/PhysRevD.64.064009

We discuss the possible detection of a stochastic background of massive, non-relativistic scalar particles, through the cross correlation of the two LIGO interferometers in the initial, enhanced and advanced configuration. If the frequency corresponding to the mass of the scalar field lies in the detector sensitivity band, and the non-relativistic branch of the spectrum gives a significant contribution to energy density required to close the Universe, we find that the scalar background can induce a non-negligible signal, in competition with a possible signal produced by a stochastic background of gravitational radiation.

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