Cosmology and high energy physics with space-borne interferometers

Details Cosmology and high energy physics with space-borne interferometers Cosmology and high energy physics with space-borne interferometers

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..555..505u&link_type=abstract

Cosmology and Particle Physics: CAPP 2000. AIP Conference Proceedings, Volume 555, pp. 505-508 (2001).

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Gravitational Radiation Detectors, Mass Spectrometers, And Other Instrumentation And Techniques, Gravitational Wave Detectors And Experiments

Scientific paper

We discuss the impact of space-borne laser interferometric experiments operating in the low-frequency window (~1 μHz-1 Hz), with the goal of identifying the fundamental issues that regard the detection of a primordial background of GW predicted by slow-roll inflationary models, corresponding to h1002Ω~10-16-10-15. We analyze the capabilities of the planned single-instrument LISA mission and the sensitivity improvements that could be achieved by cross-correlating the data streams from a pair of detectors of the LISA-class. We estimate that the primordial background can be detected only if its fractional energy density h1002Ω is greater than a few times 10-12. We briefly discuss a possible follow-on mission with optimal sensitivity in the 0.1 Hz band specifically aimed at gravitational wave cosmology. .

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