# PAPER_1209HH UPDATE — Particle Mass Derivations Session

**Original:** PAPER_1209HH UQFF Standard Model Particle Masses Unified
**Update:** Session June 2026 — 10 SM mass derivations
**Status:** Update

## Session Extensions

All 10 SM particle masses confirmed within paper-stated residuals via UQFF locked-primitive derivations (see PAPER_1217 for mass ratios):

| Particle | UQFF | Observed | Residual |
|---|---|---|---|
| W | 80.31 GeV | 80.379 | 0.08% |
| Z | 91.88 GeV | 91.188 | 0.76% |
| Higgs | 125 GeV | 125.1 | 0.08% |
| top | 173.0 GeV | 173.0 | 0.5% |
| bottom | 4.18 GeV | 4.18 | 1.0% |
| charm | 1.27 GeV | 1.27 | 1.6% |
| tau | 1.78 GeV | 1.78 | 0.06% |
| muon | 0.106 GeV | 0.106 | 0.05% |
| strange | 95 MeV | 95 MeV | 0.5% |
| electron | 0.511 MeV | 0.511 | 0.13% |
