Spin and isospin fluctuations in heavy ion collisions and their dependence upon the shape of the dinuclear complex
The relevance of higher multipoles of giant isovector modes in the charge distribution of deep inelastic fragments is discussed and found to depend strongly on mass asymmetry. The sources of angular momentum fluctuations are investigated. Quantal effects are considered as well as effects arising from non-equilibrium and equilibrium statistical fluctuations. A model based upon equilibrium statistical mechanics is considered in detail, and used to predict both 2nd moments of the angular momentum distributions and the angular momentum misalignment. Analytical expressions are derived to calculate the angular distributions of sequentially emitted particles, fission fragments, as well as gamma rays in terms of the angular momentum misalignment. Recent data on the angular distributions of sequential alphas, fission and gamma rays are analyzed in terms of the model. 29 figures, 1 table.
- Research Organization:
- California Univ., Berkeley (USA). Lawrence Berkeley Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6802788
- Report Number(s):
- LBL-11428
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
ASYMMETRY
CHARGE DISTRIBUTION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
CONFIGURATION
DATA
DEEP INELASTIC HEAVY ION REACTIONS
DISTRIBUTION
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
FISSION FRAGMENTS
FLUCTUATIONS
GAMMA RADIATION
GIANT RESONANCE
HEAVY ION REACTIONS
INFORMATION
IONIZING RADIATIONS
ISOSPIN
LECTURES
MASS
MATHEMATICAL MODELS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PROPERTIES
RADIATIONS
RESONANCE
SHAPE
SPIN
STATISTICAL MODELS
THEORETICAL DATA
VARIATIONS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
ASYMMETRY
CHARGE DISTRIBUTION
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
CONFIGURATION
DATA
DEEP INELASTIC HEAVY ION REACTIONS
DISTRIBUTION
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
FISSION FRAGMENTS
FLUCTUATIONS
GAMMA RADIATION
GIANT RESONANCE
HEAVY ION REACTIONS
INFORMATION
IONIZING RADIATIONS
ISOSPIN
LECTURES
MASS
MATHEMATICAL MODELS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PROPERTIES
RADIATIONS
RESONANCE
SHAPE
SPIN
STATISTICAL MODELS
THEORETICAL DATA
VARIATIONS