Abstract
We discuss the possibility that the line structure observed in the spectrum of the positrons produced in heavy ion collisions is due to the decay of a new neutral elementary particle. We argue that this can be ruled out unless one is willing to accept fine tuning of parameters, or to assume the dominance of nonlinear effects.
- Received 17 September 1985
DOI:https://doi.org/10.1103/PhysRevC.33.194
©1986 American Physical Society
