A method to measure the axion mass
Abstract
We have calculated the decay rate of the triplet state of positronium into axion + gamma, under the hypothesis that the axion mass is less than 1 MeV. The branching ratio is found to be ~3 × 10-8. We describe a possible experiment that could detect the axion and measure its mass.
On leave from Istituto Nazionale di Fisica Nuclear, Sezione di Pisa, Pisa, Italy.- Publication:
-
Physics Letters B
- Pub Date:
- May 1981
- DOI:
- 10.1016/0370-2693(81)90172-6
- Bibcode:
- 1981PhLB..101..444C