Jonathan Blazek

I'm re-opening this and assigning it to myself. FAST-PT has a resummation method built in (from Ivanov) to do BAO damping at 1loop PT. Exposing this should be straightforward. Generalizing...

@damonge : Good question. I have not exposed the FAST-PT functionality to `PTTracers`. However, as @tilmantroester notes, there are now more modern approaches which might be better. Is the HMCode...

Keep this open for now. I have a few fast-pt -> CCL housekeeping tasks to do.

i assume that they were using @slosar version: https://github.com/slosar/FFTLog

@elisachisari @tmcclintock @sukhdeep1989 Agreed, modulo the modifications made to fftlog to operate on projected statistics.

w_p is super easy in the limber approx.

Sprinting on this with @Andromedanita. Will try to finish implementation tomorrow. We need a new function similar to ccl_correlation_3d in ccl_correlation.c. The only difference should be the first argument in...

@sukhdeep1989 : my question about the prefactor and the k, r scalings was in order to allow the generic bessel tranform using fft-log. (e.g. need additional k factors to convert...

@tilmantroester : will this also solve the nonlinear Pk extrapolation for nonlinear systematics in Firecrown?

UPDATE: I've been playing with this a bit, and the agreement between the NLA output with the standard CCL method and the output using generalized p_k_a and the PTTracers gets...