Abstract
Recently observed kinetic-energy peaks at 336±40 keV in several heavy-ion systems have suggested the existence of a particle φ decaying to . We construct a simple model of φ production by the electromagnetic field of the ions. It is not possible to produce φ at rest as the data require. If is just above 2, then a sharp peak in the kinetic energy can be obtained if the φ velocity is sharply peaked and nonzero. Our model suggests a mechanism for this via the formation of a resonance in the ionic system for which there is independent evidence.
- Received 23 September 1985
DOI:https://doi.org/10.1103/PhysRevLett.56.302
©1986 American Physical Society