On How Neutrino Protects the Axion
classification
✦ hep-th
gr-qchep-ph
keywords
neutrinoaxionboundgravityitselflightestmassmechanism
read the original abstract
We show how the neutrino can sacrifice itself to quantum gravity and save the axion solution to the strong-CP problem. This mechanism puts an upper bound on the lightest neutrino mass.
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