📝 Issue Summary
The Pcb matter power spectrum has already been implemented in the library. However, the Cl computation pipeline currently always uses the total matter power spectrum (Pmm) and does not expose the possibility of selecting an alternative power spectrum.
Some applications, such as cosmological analyses including massive neutrinos, require different choices of matter power spectrum depending on the observable. For example, galaxy clustering may require the use of the cold dark matter + baryon power spectrum (Pcb), while galaxy-galaxy lensing may require a combination such as sqrt(Pmm * Pcb).
✅ Expected Outcome
Introduce a configurable option to select the matter power spectrum used in the Cl computation pipeline. Enabling support for Pcb required by massive neutrino analyses.
📌 Additional Notes
📝 Issue Summary
The
Pcbmatter power spectrum has already been implemented in the library. However, the Cl computation pipeline currently always uses the total matter power spectrum (Pmm) and does not expose the possibility of selecting an alternative power spectrum.Some applications, such as cosmological analyses including massive neutrinos, require different choices of matter power spectrum depending on the observable. For example, galaxy clustering may require the use of the cold dark matter + baryon power spectrum (
Pcb), while galaxy-galaxy lensing may require a combination such assqrt(Pmm * Pcb).✅ Expected Outcome
Introduce a configurable option to select the matter power spectrum used in the Cl computation pipeline. Enabling support for Pcb required by massive neutrino analyses.
📌 Additional Notes