I'm trying to construct a Fisher Forecast for the upcoming S4 CMB survey. I don't understand(adsbygoogle = window.adsbygoogle || []).push({});

what the C_l is in this formula. It is H(z) and the Angular Distance? Or is it some covariance matrix and if it is a covariance matrix how do I calculate it considering the experiment hasn't been done yet?

In the end I want to calculate this

All help will be appreciated thanks.

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# I What is the C_l in the Fisher Matrix For An CMB Survey?

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