SMRTR Science & EngineeringMay 31, 2025Live Science

Infamous 'neutron lifetime puzzle' may finally have a solution — but it involves invisible atoms

SMRTR summary

A theoretical study suggests a new type of invisible hydrogen atom that could explain the neutron lifetime puzzle and potentially solve the dark matter mystery. This hypothesis proposes that neutrons sometimes decay into this invisible hydrogen and a neutrino, accounting for discrepancies in experimental results. Ongoing experiments aim to test this theory, with findings expected soon.

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