MATTER DISTRIBUTION FOR POWER SPECTRA WITH BROKEN SCALE-INVARIANCE

To test the primordial power spectra predicted by a double inflationar y model with a break of amplitude Delta = 3 at a scale of 2 pi/k appro ximate to 10 h(-1) Mpc and cold dark matter (CDM) as dominant matter c ontent, we perform particle-mesh simulations with 128(3) particles on a 256(3) grid. The broken scale invariance of the power spectra explai ns the extra power observed in the large-scale matter distribution. CO BE-normalized spectra and a linear biasing with b approximate to 2 are shown to reproduce the reconstructed power spectra from the CfA catal og. By identifying galactic halos with a random selection of particles in overdensity regions of approximately 2 times the cell variance, we can fit the angular correlation function using both the Limber equati on and creating an APM-like angular projection with the observed lumin osity function. Finally, the higher order moments of the galaxy distri bution are shown to fit reasonably well the observed values.