First search for gravitational waves from inspiraling compact binaries using TAMA300 data

We analyzed 6 hours of data from the TAMA300 detector by matched filtering, searching for gravitational waves from inspiraling compact binaries. We incorporated a two-step hierarchical search strategy in matched filtering. We obtained an upper limit of 0. 59/hour (C. L. =90%) on the event rate of inspirals of compact binaries with a mass between 0. 3M_ and 10M_ and with a signal-to-noise ratio greater than 7. 2. The distance of 1. 4M_ (0. 5M_) binaries which produce the signal-to-noise ratio 7. 2 was estimated to be 6. 2 kpc (2. 9 kpc) when the position of the source in the sky and the inclination angle of the binaries were optimal.