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Ionization and positron emission in giant quasiatoms

Conference · · AIP Conf. Proc.; (United States)
OSTI ID:5727684
; ; ; ; ; ; ; ;
Electron excitation processes in superheavy quasiatoms are treated within a relativistic framework. Theoretical results on K-hole production rates as well as delta-electron and positron spectra are compared with experimental data. It is demonstrated that the study of heavy ion collisions with nuclear time delay promises a signature for the spontaneous positron formation in overcritical systems. Corresponding experimental results are confronted with our theoretical hypothesis. Recent speculations on the origin of the observed peak structures in positron spectra are critically reviewed. Atomic excitations are also employed to obtain information on the course of a nuclear reaction. Using a semiclassical picture we calculate the emission of delta-electrons and positrons in deep-inelastic nuclear reactions. Furthermore some consequences of conversion processes in giant systems are investigated.
Research Organization:
Justus-Leibig-Universitaet, Gissen, West Germany
OSTI ID:
5727684
Report Number(s):
CONF-8505189-
Conference Information:
Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 136
Country of Publication:
United States
Language:
English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
ATOM COLLISIONS
CHARGED-PARTICLE REACTIONS
COLLISIONS
COMPOUND NUCLEI
DEEP INELASTIC HEAVY ION REACTIONS
ELECTRONIC STRUCTURE
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ENERGY SPECTRA
FERMIONS
GEV RANGE
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INNER-SHELL IONIZATION
INTERACTIONS
ION COLLISIONS
ION-ATOM COLLISIONS
IONIZATION
K SHELL
LEPTONS
NUCLEAR MOLECULES
NUCLEAR REACTIONS
NUCLEI
PAIR PRODUCTION
POSITRONS
SPECTRA
TRANS 104 ELEMENTS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS