# LIB2-139 — The declared top-Yukawa boundary has a separately reported running value

- class: CLAIM · review_state: PUBLISHED · house_tier: not yet assigned
- labels as printed: math_status NOT_PRINTED · attachment NOT_PRINTED · scorecard tier word none (PDF p.36)
- basis: {"pdf_sha256_prefix": "b64ddcd9e16a6dcd", "release": "Rev33.1_S369"}

## Statement

The suite reports that RG evolution of its declared yt(MPl) = 1 boundary gives yt(MZ) ≈ 0.967 in the low-energy effective theory.

## Caution

The running value inherits W01 and does not equate the two scale-dependent couplings or complete the top-mass matching.

## Primary source

Paper 2, §3.5, Declared ultraviolet boundary, PDF p.37: "its reading as the physical top Yukawa at the Planck scale is the declared attachment W01 (Appendix A, interface marker W01) — an attachment, not a derivation (Rev32.5, A1564)."

## Machine

- url: /library-v2/LIB2-139/
- content_sha256: 0ef84e1ebb55c7bcc53cb5399ec5611887a62dd6e01cc0379002aac5908b9ab9
- candidate_ids: C2-016

## Freshness

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