Instability of hot nuclei

Journal Article · Sun Oct 01 00:00:00 EDT 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.1677· OSTI ID:5332975

Jaqaman, H R ^[1]

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1. Physics Department, Birzeit University, Birzeit, West Bank (IL)

A hot nucleus is unstable if its temperature exceeds a certain limiting value due to the Coulomb repulsion between its protons. This instability is investigated using a finite-temperature generalization of the liquid-drop model. For this purpose an equation of state for asymmetric nuclear matter derived in a previous work with the use of a Skyrme-type effective interaction is generalized to the case of a density-dependent effective mass. Standard parametrizations of the Skyrme interaction are used to study the properties of a hot {sup 208}Pb nucleus immersed in a uniform vapor. Good agreement is achieved between the present model and the results of finite-temperature Hartree-Fock calculations only if the Coulomb interaction between the vapor and the drop is properly taken into account. The results are seen to yield valuable information on the temperature dependence of the surface tension of hot nuclei.

• OSTI ID: 5332975
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
653002 -- Nuclear Theory-- Nuclear Matter
653003 -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
COULOMB FIELD
EFFECTIVE MASS
ELECTRIC FIELDS
EQUATIONS
EQUATIONS OF STATE
EVEN-EVEN NUCLEI
FERMI GAS
FLUIDS
GASES
HARTREE-FOCK METHOD
HEAVY ION REACTIONS
HEAVY NUCLEI
ISOSPIN
ISOTOPES
LEAD 208
LEAD ISOTOPES
LIQUID DROP MODEL
MASS
MATHEMATICAL MODELS
MATTER
NUCLEAR MATTER
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR TEMPERATURE
NUCLEI
NUCLEON-NUCLEON POTENTIAL
PARTICLE PROPERTIES
POTENTIALS
SKYRME POTENTIAL
SPIN
STABLE ISOTOPES
SURFACE PROPERTIES
SURFACE TENSION
TEMPERATURE DEPENDENCE