@article{1509938de04648aab528c938f13cf042,
title = "First cross-correlation analysis of interferometric and resonant-bar gravitational-wave data for stochastic backgrounds",
abstract = "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 Omega(gw)(f)<= 1.02, which corresponds to a gravitational-wave strain at 915 Hz of 1.5x10(-23) Hz(-1/2). In the traditional units of h(100)(2)Omega(gw)(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.",
keywords = "RHO-PI PUZZLE, POSSIBLE EXPLANATION, J/PSI, PSI, DECAYS",
author = "B. Abbott and R. Abbott and R. Adhikari and J. Agresti and P. Ajith and B. Allen and R. Amin and S.B. Anderson and W.G. Anderson and M. Arain and M. Araya and H. Armandula and M. Ashley and S. Aston and P. Aufmuth and C. Aulbert and S. Babak and S. Ballmer and H. Bantilan and B.C. Barish and C. Barker and D. Barker and B. Barr and P. Barriga and M.A. Barton and K. Bayer and K. Belczynski and J. Betzwieser and P.T. Beyersdorf and B. Bhawal and I.A. Bilenko and G. Billingsley and R. Biswas and E. Black and K. Blackburn and L. Blackburn and D. Blair and B. Bland and J. Bogenstahl and L. Bogue and R. Bork and V. Boschi and S. Bose and P.R. Brady and V.B. Braginsky and J.E. Brau and M. Brinkmann and A. Brooks and D.A. Brown and S. Hild and {ALLEGRO Collaboration} and {LIGO Scientific Collaboration}",
year = "2007",
month = jul,
day = "1",
doi = "10.1103/PhysRevD.76.022001",
language = "English",
volume = "76",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "2",
}