Microscopic description of heavy-ion collisions in terms of interacting RPA modes
Creators
- 1. Technische Univ., Dresden (German Democratic Republic). Sektion Physik
Description
Starting from the TDHF equation, the equations of motion for the single-particle density matrices refering to projectile and target are derived in an approximative way in a translating and rotating reference frame. An expansion of the fluctuating part of the transformed density in terms of generalized RPA modes in the ph as well as the pp(hh) channel leads to a system of non-linear coupled equations which simultaneously determine the time development of the collective coordinates and momenta of the relative motion, of the intrinsic angular momentum, and of the amplitudes of coherent surface excitations of the fragments. In a schematic calculation the formalism is applied to the angular momentum dissipation in the excitation of damped giant dipole modes. (orig.)
Additional details
Publishing Information
- Journal Title
- Nucl. Phys., A
- Journal Volume
- 425
- Journal Issue
- 1
- Series
- CODEN: NUPAB.;Nucl. Phys., A.
- Journal Page Range
- 152-184
- ISSN
- 0375-9474
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 15071559
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ANGULAR MOMENTUM; CALCIUM 40 REACTIONS; CALCIUM 40 TARGET; COLLECTIVE MODEL; DAMPING; DENSITY MATRIX; DISSIPATION FACTOR; EQUATIONS OF MOTION; EXCITATION; E1-TRANSITIONS; FLUCTUATIONS; GIANT RESONANCE; HARTREE-FOCK METHOD; HEAVY ION REACTIONS; KINETIC EQUATIONS; KRYPTON 86 REACTIONS; LEAD 208 REACTIONS; LEAD 208 TARGET; MANY-BODY PROBLEM; MEV RANGE 100-1000; NONLINEAR PROBLEMS; NUCLEAR FRAGMENTS; NUCLEAR STRUCTURE; PARTICLE-HOLE MODEL; RANDOM PHASE APPROXIMATION; SCATTERING AMPLITUDES; SERIES EXPANSION; TIME DEPENDENCE; ZIRCONIUM 90 REACTIONS; ZIRCONIUM 90 TARGET
- Descriptors DEC
- AMPLITUDES; DIFFERENTIAL EQUATIONS; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; EQUATIONS; MATHEMATICAL MODELS; MATRICES; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR MODELS; NUCLEAR REACTIONS; PARTIAL DIFFERENTIAL EQUATIONS; RESONANCE; TARGETS; VARIATIONS