# LIB2-239 — Deprecated house Cabibbo-comparator route

- 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 earlier house Cabibbo note presented CF2 Route B as its primary, GREEN route; a header added later marks the note deprecated, quoting a suite sentence that deprecates the Cabibbo-comparator route and keeps Route B canonical.

## Caution

This retirement does not retire the current loaded Route-B formula merely because both descriptions use the Route-B name.

## Primary source

Paper 3, §2, Route-selection provenance, PDF p.49: "The first row is Loaded: Route B was selected after comparison with kaon data."

## Machine

- url: /library-v2/LIB2-239/
- content_sha256: 1459148292705523444acc924cdfa484366cd3b8cde0b7d097799d4e8c3c5558
- candidate_ids: C2-147

## Freshness

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