Role of rotational degrees of freedom in heavy-ion collisions

Conference · Thu Apr 01 04:00:00 EST 1982

OSTI ID:5227242

Moretto, L G

The degrees of freedom affected by the angular momentum are identified. The relevance of the equilibrium fluctuations in a diffusive evolution of the system is discussed. The statistical limit is described and chosen as a reference for comparing with experiment. The rigid rotation regime is shown to be reached in a variety of reactions. The fragment spin alignment is measured from ..gamma..-ray multiplicities and anisotropies as well as from sequential fission angular distributions. Good agreement is obtained with the statistical model for the P/sub zz/ component of the polarization tensor. The P/sub xy/ component seems also to reach the statistical limit at large Q-value. The effect of shells on the angular momentum transferred to the fragments and on its misalignment is discussed theoretically and specific predictions are made.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5227242
• Report Number(s): LBL-14283; CONF-820536-2; ON: DE82015751
• Country of Publication: United States
• Language: English

Related Subjects

651715 -- Nuclear Properties & Reactions
A=90-149
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
ENERGY
FISSION
FLUCTUATIONS
HEAVY ION REACTIONS
KINETICS
MATHEMATICAL MODELS
MOTION
NUCLEAR FRAGMENTS
NUCLEAR REACTION KINETICS
NUCLEAR REACTIONS
ORIENTATION
POLARIZATION
POLARIZED PRODUCTS
Q-VALUE
REACTION KINETICS
ROTATION
SPIN ORIENTATION
STATISTICAL MODELS
VARIATIONS