Abstract
We survey mechanisms which introduce lepton-number violation into the standard model. These mechanisms involve extensions in the fermion or scalar sectors. We present a minimal model with explicit lepton-number breaking and an invisible axion. Neutrino masses are generated at one loop. For a reasonable range of parameters the model provides a solution to the strong CP and solar-neutrino problems.
| Original language | English |
|---|---|
| Pages (from-to) | 2337-2350 |
| Number of pages | 14 |
| Journal | Physical review D |
| Volume | 43 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1991 |