# LIB2-313 — Derive physical matching for the tau-anchored bottom bridge

- class: OPEN · review_state: IN_REVIEW · 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

Can the tau-pole-anchored bottom bridge be connected to the MS-bar bottom mass at its self-scale through an explicit physical matching relation with uncertainties?

## Caution

A matching construction is not supplied, and the finite index alone does not establish a low-energy bottom-mass relation.

## Primary source

Appendix X, Scheme-label declaration: bottom bridge is not a pole mass, PDF p.346: "it is not a bottom pole mass, and no pole→ MS conversion is applied"

## Machine

- url: /library-v2/LIB2-313/
- content_sha256: 34e1a82ac347e8c1d435a94419230f8b8b85aa838599b39fba02989d833f648f
- candidate_ids: C2-021

## Freshness

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