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Abbott, B. [Author]; Abbott, R. [Author]; Adhikari, R. [Author]; Agresti, J. [Author]; Ajith, P. [Author]; Allen, B. [Author]; Amin, R. [Author]; Anderson, S.B. [Author]; Anderson, W.G. [Author]; Arain, M. [Author]; Araya, M. [Author]; Armandula, H. [Author]; Ashley, M. [Author]; Aston, S. [Author]; Aufmuth, P. [Author]; Aulbert, C. [Author]; Babak, S. [Author]; Ballmer, S. [Author]; Bantilan, H. [Author]; Barish, B.C. [Author]; Barker, C. [Author]; Barker, D. [Author]; Barr, B. [Author]; Barriga, P. [Author]; [...]

First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds - [published Version]

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  • Media type: Text; E-Article
  • Title: First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds
  • Contributor: Abbott, B. [Author]; Abbott, R. [Author]; Adhikari, R. [Author]; Agresti, J. [Author]; Ajith, P. [Author]; Allen, B. [Author]; Amin, R. [Author]; Anderson, S.B. [Author]; Anderson, W.G. [Author]; Arain, M. [Author]; Araya, M. [Author]; Armandula, H. [Author]; Ashley, M. [Author]; Aston, S. [Author]; Aufmuth, P. [Author]; Aulbert, C. [Author]; Babak, S. [Author]; Ballmer, S. [Author]; Bantilan, H. [Author]; Barish, B.C. [Author]; Barker, C. [Author]; Barker, D. [Author]; Barr, B. [Author]; Barriga, P. [Author]; [...]
  • imprint: College Park, MD : American Physical Society, 2007
  • Published in: Physical Review D - Particles, Fields, Gravitation and Cosmology 76 (2007), Nr. 2 ; Physical Review D - Particles, Fields, Gravitation and Cosmology
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.15488/12056; https://doi.org/10.1103/PhysRevD.76.022001
  • ISSN: 1550-7998
  • Keywords: decays ; j/psi ; psi ; possible explanation ; rho-pi puzzle
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: Data from the LIGO Livingston interferometer and the ALLEGRO resonant-bar detector, taken during LIGO's fourth science run, were examined for cross correlations indicative of a stochastic gravitational-wave background in the frequency range 850-950 Hz, with most of the sensitivity arising between 905 and 925 Hz. ALLEGRO was operated in three different orientations during the experiment to modulate the relative sign of gravitational-wave and environmental correlations. No statistically significant correlations were seen in any of the orientations, and the results were used to set a Bayesian 90% confidence level upper limit of Ωgw(f)≤1.02, which corresponds to a gravitational-wave strain at 915 Hz of 1.5×10-23Hz-1/2. In the traditional units of h1002Ωgw(f), this is a limit of 0.53, 2 orders of magnitude better than the previous direct limit at these frequencies. The method was also validated with successful extraction of simulated signals injected in hardware and software. © 2007 The American Physical Society.
  • Access State: Open Access