# LIB2-287 — Superseded golden-power ratio of CKM hierarchy magnitudes

- 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 hierarchy proposals identified the Vub-to-Vcb magnitude ratio with a fixed negative power of the golden ratio.

## Caution

This replaces the physical hierarchy ratio only and leaves the separate Rb subclaim unadjudicated.

## Primary source

Appendix B, §B.6, Retained Vub hierarchy relation, PDF p.162: "|Vub | |Vus ||Vcb |/ 6 = 0.003862"

## Machine

- url: /library-v2/LIB2-287/
- content_sha256: af27731405e0a83d8b7296e428c008e4fdecc3ae24e4ec4b3a2fc61c27a31551
- candidate_ids: C2-011 C2-064

## Freshness

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