Observation of Positron Creation in Superheavy Ion-Atom Collision Systems
- 29 May 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 40 (22), 1443-1446
- https://doi.org/10.1103/PhysRevLett.40.1443
Abstract
We report the first observation of positron creation in high-energy + collisions and establish that a dominant fraction of the positron yield is from nonnuclear origins. The excess positron intensity observed over nuclear emission and its projectile energy dependence is consistent with recent predictions for pair-creation processes in the strong time-varying electric fields produced by the combined nuclear charges of the quasimolecular system formed in the collision.
Keywords
This publication has 12 references indexed in Scilit:
- K-X-ray spectrum of the Pb + Pb quasimoleculesPhysics Letters B, 1978
- Critical distance for the electron two-center problemPhysics Letters B, 1977
- Positron production in heavy-ion collisionsPhysics Letters B, 1977
- Quadrupole Moment of the FirstState inPhysical Review Letters, 1977
- Shakeoff of the Vacuum Polarization in Quasimolecular Collisions of Very Heavy IonsPhysical Review Letters, 1977
- Induced Decay of the Neutral Vaccum in Overcritical Fields Occurring in Heavy-Ion CollisionsPhysical Review Letters, 1974
- The charged vacuum in over-critical fieldsNuclear Physics B, 1974
- Solution of the Dirac equation with two Coulomb centresPhysics Letters B, 1973
- Stability of the Vacuum and Quantization of the Electron-Positron Field for Strong External FieldsPhysical Review D, 1973
- Solution of the Dirac Equation for Strong External FieldsPhysical Review Letters, 1972