# L77: NEUTRINOLESS DOUBLE BETA DECAY

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

## Prompt

NEUTRINOLESS DOUBLE BETA DECAY
Using Majorana mass from L76, compute effective mass m_betabeta: m_betabeta = |Sum U^2_ei m_i|. Compare to KamLAND-Zen limit m_betabeta < 36 meV. Assess whether v1.27.5 prediction is above or below current limit. Identify as a near-term falsification test. #SuperGrokTOE #NeutrinolessBeta #KamLAND