| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9860898 | Physics Letters B | 2005 | 4 Pages |
Abstract
We show that the e++eâ decay of a light scalar boson of mass 1-10 MeV may account for the fluxes of 511 keV gamma ray observed by SPI/INTEGRAL. We argue that candidates of such a light scalar boson is one of the string moduli or a scalar partner of the axion in a supersymmetric theory.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
M. Kawasaki, T. Yanagida,