Nonlinear evolution of baryon acoustic oscillations from improved perturbation theory in real and redshift spaces
Nonlinear evolution of baryon acoustic oscillations from improved perturbation theory in real and redshift spaces
We study the nonlinear evolution of baryon acoustic oscillations in the matter power spectrum and correlation function from the improved perturbation theory (PT). Based on the framework of renormalized PT, which provides a nonperturbative way to treat the gravitational clustering of large-scale structure, we apply the closure approximation that truncates …