Case 08.1.0: w0waCDM + mnu, Neff (Spectro)

Metadata

Model

w0waCDM + mnu, Neff

Probe

Spectro

Scenario

Pessimistic

Variant

P_cb

Description

camb vs class (spectro, pessimistic), stress test explicitly excluded by paper Sec. 6 (arXiv:2405.06047v1) for degeneracy/non-Gaussian-posterior reasons, 9 free cosmological params: w0waCDM + free mnu, Neff

Sigma threshold

10%

Gate

PASS

Timestamp

2026-08-31 05:59:07

OMP_NUM_THREADS

Elapsed A / B

402.2s / 2228.1s

Git commit

b0e8eb1 (dirty)

Code A

camb 2.0.3 (pypi)

Code B

class 3.3.4.0 (pypi)

Cosmological parameters

Parameter	σ (A)	σ (B)	Deviation	Status
`Omegam`	0.0569521	0.0580473	1.92%	PASS
`Omegab`	0.0100729	0.0103017	2.27%	PASS
`h`	0.0441524	0.0450262	1.98%	PASS
`ns`	0.0443014	0.0453277	2.32%	PASS
`sigma8`	0.055261	0.0561068	1.53%	PASS
`mnu`	0.294158	0.293695	0.16%	PASS
`Neff`	0.791183	0.807586	2.07%	PASS
`w0`	0.387998	0.395473	1.93%	PASS
`wa`	1.39682	1.42291	1.87%	PASS

Nuisance parameters

Parameter	σ (A)	σ (B)	Deviation	Status
`Ps_1`	49.3499	49.9058	1.13%	PASS
`Ps_2`	49.8988	50.4115	1.03%	PASS
`Ps_3`	52.6074	52.9441	0.64%	PASS
`Ps_4`	54.5015	54.8598	0.66%	PASS
`lnbg_1`	0.0246717	0.0251087	1.77%	PASS
`lnbg_2`	0.0279939	0.0284871	1.76%	PASS
`lnbg_3`	0.0308223	0.0313871	1.83%	PASS
`lnbg_4`	0.0337693	0.0344026	1.88%	PASS

Inputs used

CAMB/CLASS YAML A (camb) →CAMB/CLASS YAML B (class) →Current common specs source →Survey specs (Pessimistic) →Generated Fisher specs A (camb) →Generated Fisher specs B (class) →