Disassembly of hot classical charged drops

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.34.177· OSTI ID:5645183

Lenk, R J; Pandharipande, V R

The disassembly of hot classical charged drops containing --230 and 130 particles is studied with the molecular dynamics method. The strength of the Coulomb repulsion is chosen so that these drops have a binding energy formula similar to that of nuclei. The phase diagram of neutral matter, obtained by switching off the Coulomb force, is also similar to that of nuclear matter. In addition to the total-vaporization, fragmentation, and evaporation modes of the disassembly of neutral drops, the charged drops also break by multiple and binary fission. The liquid-gas phase transition plays an important role in the multiple fission of expanding charged liquid drops. There also appears to be a window in the initial conditions in which binary fission followed by a density oscillation is the dominant mode of breakup. The multiple and binary fission breakups are due to the Coulomb forces, and they yield more massive clusters with relatively few small clusters with --10 particles. The higher energy fragmentation and total vaporization modes are not significantly influenced by the Coulomb forces. They are primarily due to the liquid-gas transition, and their yields decrease almost monotonically with the number of particles in the cluster.

• Research Organization: Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
• OSTI ID: 5645183
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 34:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653002* -- Nuclear Theory-- Nuclear Matter
653006 -- Nuclear Theory-- Spontaneous & Induced Fission
653007 -- Nuclear Theory-- Nuclear Models-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON
BINDING ENERGY
CLASSICAL MECHANICS
COULOMB FIELD
DROPLETS
ELECTRIC FIELDS
ELEMENTS
ENERGY
EQUATIONS
EQUATIONS OF STATE
EVAPORATION MODEL
FISSION
FLUIDS
FRAGMENTATION
GASES
HAMILTONIANS
LIQUID DROP MODEL
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATTER
MECHANICS
NONMETALS
NUCLEAR MATTER
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLES
PHASE TRANSFORMATIONS
QUANTUM OPERATORS
RARE GASES