Detecting a relic background of scalar waves with LIGO

Abstract

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.

17 pages, uses revtex

References in corpus (5)

• Gravitational Wave Experiments and Early Universe Cosmology
• Detection strategies for scalar gravitational waves with interferometers and resonant spheres
• On the response of gravitational antennas to dilatonic waves
• Sensitivity of a VIRGO pair to stochastic GW backgrounds
• Signal-to-noise ratio for a stochastic background of massive relic particles

Cited by in corpus (10)

• The Pre-Big Bang Scenario in String Cosmology
• Gravitational Wave Tests of General Relativity with Ground-Based Detectors and Pulsar Timing Arrays
• Measuring stochastic gravitational-wave energy beyond general relativity
• Probing for massive stochastic gravitational-wave background with a detector network
• On the Detection of a Scalar Stochastic Background of Gravitational Waves
• Response of the common mode of interferometric detectors to a stochastic background of massive scalar radiation
• Proposal for a geophysical search for dilatonic waves
• Sensitivity of spherical gravitational-wave detectors to a stochastic background of non-relativistic scalar radiation
• The Ligo-Ligo cross correlation for the detection of relic scalar gravitational waves
• Constraints on typical relic gravitational waves based on data of LIGO