Preprint
Aug 2026
The Primordial power spectrum from the largest to smallest CMB scales
We reconstruct the primordial power spectrum (PPS) across the full range of cosmological scales accessible to Cosmic Microwave Background (CMB) observations. Using the Modified Richardson--Lucy algorithm, we perform free-form reconstructions through deconvolution of Planck PR3 and PR4, Atacama Cosmology Telescope (ACT)...
Debabrata Chandra, D. K. Hazra, A. Shafieloo et al.
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