# LIB2-273 — Superseded D-tower formula for the charm mass

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

## Statement

The archived charm-mass prompt proposed a D-tower golden-power formula as its physical mass target.

## Caution

The current constituent-anchored comparison is not a scheme-matched mass theorem or a refutation of every tower construction.

## Primary source

Paper 2, §3.6, Current charm boundary value and offset, PDF p.38: "The charm bridge value mc = 1291.9 MeV lies +1.49% above the PDG 2026 MS comparator mc (mc ) = 1272.9 ± 4.5 MeV."

## Machine

- url: /library-v2/LIB2-273/
- content_sha256: daf9aad905a9b6d49f30ad19a0181d0d2d63a22f5edc37dd79b74eebe6128dc8
- candidate_ids: C2-022

## Freshness

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