# LIB2-204 — SL-01: NuFIT solar mass-squared splitting comparator

- class: COMPARATOR · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status NOT_PRINTED · attachment NOT_PRINTED · scorecard tier word none (PDF p.80)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The ledger’s NuFIT solar mass-squared splitting comparator is 7.537e-5 eV², with asymmetric uncertainties and one shared row for fits with or without SK atmospheric data.

## Primary source

Paper 5, §2, Named splitting data beside the literal mass-reading test, PDF p.84: "NuFIT 6.1 IC24 NO: ∆m221 = 7.537 × 10−5 eV2"

## Machine

- url: /library-v2/LIB2-204/
- content_sha256: c75a7dedebe17696d0693546e033fcf92d95db78db7fd1ebd7063b0a6386be8e
- candidate_ids: C2-179

## Freshness

- BUILD_STAMP S371a · 2026-09-26T22:53Z · master 01d1a5873ede42f5 · cut 9dcc6ce9a8ee3e02
- Declared volatile fields (R36): BUILD_STAMP