Research family
Growth under fixed CPL expansion
Growth-observable tests under fixed expansion parameters.
5 execution records · Latest record: 09 Oct 2026
Editorial grouping by research question. Each record preserves its original identifier, priors, method, result and status. Values have not been combined, and a signal in a single run is not a global detection.
Δχ² = reference χ² − alternative χ²
Growth comparisons with expansion held fixed in each run.
- quasars at effective z = 1.491 · Fixed expansion: w₀ = −0.667, wₐ = −1.09; alternative growth: w₀ = −1, wₐ = 0 · T-a083e478add3−0.57
Fixed expansion: w₀ = −0.667, wₐ = −1.09; alternative growth: w₀ = −1, wₐ = 0
- luminous red galaxies at effective z = 0.51, 0.706 and 0.919 · Fixed expansion: w₀ = −0.838, wₐ = −0.62; alternative growth: w₀ = −1, wₐ = 0 · T-c7a1155361ae0.12
Fixed expansion: w₀ = −0.838, wₐ = −0.62; alternative growth: w₀ = −1, wₐ = 0
- luminous red galaxies at effective z = 0.51, 0.706 and 0.919 · Fixed expansion: w₀ = −0.667, wₐ = −1.09; alternative growth: w₀ = −1, wₐ = 0 · T-d0091f559fb40.81
Fixed expansion: w₀ = −0.667, wₐ = −1.09; alternative growth: w₀ = −1, wₐ = 0
- emission-line galaxies at effective z = 1.317 · Fixed expansion: w₀ = −0.838, wₐ = −0.62; alternative growth: w₀ = −1, wₐ = 0 · T-d47e532149bd0.64
Fixed expansion: w₀ = −0.838, wₐ = −0.62; alternative growth: w₀ = −1, wₐ = 0
- quasars at effective z = 1.491 · Fixed expansion: w₀ = −0.838, wₐ = −0.62; alternative growth: w₀ = −1, wₐ = 0 · T-e105ad201172−0.74
Fixed expansion: w₀ = −0.838, wₐ = −0.62; alternative growth: w₀ = −1, wₐ = 0
Each Δχ² compares the two fits within its own run. Positive values indicate a lower χ² for the alternative. Each record details the comparison and its limits.
Runs and variants
With expansion fixed at w₀ = −0.667 and wₐ = −1.09, do quasars at effective z = 1.491 favor the growth prediction associated with the cosmological constant?
Δχ² = −0.57: the growth alternative associated with the cosmological constant raises χ² and fails the prespecified improvement criteria. The conclusion is restricted to the two growth predictions compared at fixed expansion.
With expansion fixed at w₀ = −0.838 and wₐ = −0.62, do luminous red galaxies at effective z = 0.51, 0.706 and 0.919 favor the growth prediction associated with the cosmological constant?
Δχ² = 0.12: the growth alternative associated with the cosmological constant lowers χ² but fails the prespecified improvement criteria. The comparison does not establish a preference for this alternative, conditional on the fixed expansion history.
With expansion fixed at w₀ = −0.667 and wₐ = −1.09, do luminous red galaxies at effective z = 0.51, 0.706 and 0.919 favor the growth prediction associated with the cosmological constant?
Δχ² = 0.81: the growth alternative associated with the cosmological constant lowers χ² but fails the prespecified improvement criteria. The comparison does not establish a preference for this alternative, conditional on the fixed expansion history.
With expansion fixed at w₀ = −0.838 and wₐ = −0.62, do emission-line galaxies at effective z = 1.317 favor the growth prediction associated with the cosmological constant?
Δχ² = 0.64: the growth alternative associated with the cosmological constant lowers χ² but fails the prespecified improvement criteria. The comparison does not establish a preference for this alternative, conditional on the fixed expansion history.
With expansion fixed at w₀ = −0.838 and wₐ = −0.62, do quasars at effective z = 1.491 favor the growth prediction associated with the cosmological constant?
Δχ² = −0.74: the growth alternative associated with the cosmological constant raises χ² and fails the prespecified improvement criteria. The conclusion is restricted to the two growth predictions compared at fixed expansion.