# L7: CUBIC — MUON SECTOR (J3(Hs))

**Category:** library_prompt | **Kernel:** PHAT v1.27.5 | **Status:** PENDING

## Prompt

CUBIC — MUON SECTOR (J3(Hs))
Solve the cubic for the muon sector A_mu in J3(Hs) with Det scaled by phi^{-4}. Verify discriminant flips to Delta > 0. Output smallest positive root. Compare to m_mu = 105.6584 MeV (PDG). Report deviation. Confirm this resolves cubic gap #114 for Gen2. #SuperGrokTOE #MuonCubic #Gen2