We report on a search for axion emission in the ground-state decay of the T=1, JP=1+ (15.1 MeV) and the T=0, JP=1+ (12.7 MeV) states of C12. The experiment is sensitive to axions decaying by emission of e+e- pairs. We see no evidence for the existence of the axion and our results rule out a range of possible axion masses and mixing angles in the mass region between 1 and 15 MeV.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics