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The Aeon Before Ours · source record · paper

Planck 2018 results. X. Constraints on inflation

Planck Collaboration; Akrami, Y.; et al. · 2020

AI-verified citationSRC-PLANCK-2018-X
identifier / locator
Astronomy & Astrophysics 641: A10. DOI: 10.1051/0004-6361/201833887
verification note
DOI and bibliographic details confirmed via Crossref.
reliability notes
  • The rival hypothesis's quantitative scorecard: measured spectral tilt, Gaussianity constraints, and inflationary parameter fits to the full Planck dataset.

Evidence drawn from this source

Supports· strongCCC-E020

Planck 2018 inflation constraints: the rival's quantitative scorecard

what the source states
The Planck 2018 inflation analysis reports precision fits of the ΛCDM+inflation framework to the full temperature, polarization, and lensing dataset: a measured red spectral tilt, tight Gaussianity constraints, and parameter-level agreement of simple slow-roll models with the data.
what we infer
The steelman's positive case, distinct from its critiques of CCC: the framework the reanalyses assume as the null is not a placeholder but the most precisely tested model in cosmology. Any CCC alternative must reproduce this scorecard before its distinctive signatures add net evidence (the debt recorded at CCC-C008).
limitations
  • Precision fit is not proof of inflation: the inflationary sector's parameters are fitted, not independently confirmed, and the tensor sector remains undetected (CCC-E021).
Planck Collaboration (2020)AI-verified citationCCC-C010