I need to modify the lensing contribution to the counts power spectrum in CAMB, i.e. the counts_lensing term defined in the equations.90 module. However, to be sure I am doing things properly, I need to understand how this matches with its theoretical expression in your 1105.5292 paper.
I am referring to the term in eq. 43: L(L+1) / 2 * \int d_eta' [ ( chi - chi' ) / chi chi' ] * (2 - 5s) * W(eta')
As far as I see:
- (2 - 5s) * W(eta') is defined inside the counts_lensing term in equations.90;
- L(L+1) / 2 together with the d_eta' integration is performed in the cmbmain.90 module;
Can you point me the module and expression where this term comes into play?
Thank you in advance for your help.