Thermostatic properties and Coulomb instability of highly excited nuclei
- Sektion Physik of the Ludwig-Maximilians-Universitaet Muenchen, Am Coulombwall 1, D-85748 Garching (Germany)
The nuclear excitation is expressed in terms of an intrinsic temperature. When the temperature is raised beyond a certain limiting value the nucleus becomes unstable due to the Coulomb repulsion and falls apart before the critical temperature of the liquid-vapor phase transition is reached. We isolate the finite nucleus from the surrounding vapor by using a subtracted level occupation probability. Thermo- static and limiting properties are calculated in a relativistic Thomas-Fermi approach using density-dependent coupling constants, adjusted to the outcome of relativistic Brueckner-Hartree-Fock nuclear matter treatments, and, for the purpose of comparison, density-independent coupling constants. The disappearance of fusion-like processes in heavy-ion collisions is related to the limiting excitation energy.
- OSTI ID:
- 7238972
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:6; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOMIC MODELS
BRUECKNER METHOD
CALCULATION METHODS
CHARGED-PARTICLE REACTIONS
COUPLING CONSTANTS
CRITICAL TEMPERATURE
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL DENSITY
EQUATIONS
EQUATIONS OF STATE
EXCITED STATES
FRAGMENTATION
HARTREE-FOCK METHOD
HEAVY ION REACTIONS
MATHEMATICAL MODELS
MATTER
NUCLEAR MATTER
NUCLEAR REACTIONS
PARTICLE MODELS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RELATIVISTIC RANGE
STATISTICAL MODELS
THERMODYNAMIC MODEL
THERMODYNAMIC PROPERTIES
THOMAS-FERMI MODEL
TRANSITION TEMPERATURE