Microscopic transport theory of heavy-ion collisions. Pt. 1
- 1. Max-Planck-Institut fuer Kernphysik, Heidelberg (F.R. Germany)
- 2. Heidelberg Univ. (F.R. Germany). Inst. fuer Theoretische Physik
Description
Transport equations of the Fokker-Planck type are derived from a master equation for deeply inelastic collisions. Using the method of spectral distributions, the transport coefficients are calculated for symmetric fragmentations. Analytic formulas are given for the memory time, for the energy-drift coefficient and for the diffusion coefficients which correspond to the excitation of the fragments and the transfer of nucleons. These expressions contain parameters of the basic interaction matrix elements only, which describe excitations and transfers. Agreement with experimental data is obtained for reasonable values of these interaction parameters. Production cross sections are prediced for superheavy nuclei in the deeply inelastic collisions U + U and U + Cf. (orig.)
Abstract (German)
Transportgleichungen des Fokker-Planck-Typs werden von einer Mastergleichung fuer tief inelastische Stoesse abgeleitet. Die Transportkoeffizienten fuer symmetrische Fragmentierungen werden mit Hilfe der Spektralverteilungen berechnet. Es werden analytische Formeln fuer die Erinnerungszeit, den Energie-Drift-Koeffizienten und fuer die Diffusionskoeffizienten angegeben, die der Anregung der Fragmente und dem Nukleonentransfer entsprechen. Diese Gleichungen enthalten nur Parameter der grundlegenden Elemente der Wechselwirkungsmatrix, die Anregungen und Transfers beschreiben. Es ergibt sich eine Uebereinstimmung fuer angemessene Werte dieser Wechselwirkungsparameter. Fuer ueberschwere Kerne in den tief inelastischen Stoessen U + U und U + Cf werden Produktions-Wirkungsquerschnitte vorhergesagt. (orig.)Additional details
Additional titles
- Subtitle (English)
- Basic relations and transport coefficients for symmetric fragmentation
Identifiers
- DOI
- 10.1007/bf01415605;
Publishing Information
- Journal Title
- Zeitschrift f�r Physik A Atoms and Nuclei
- Journal Volume
- 277
- Journal Issue
- 3
- Series
- Z. Phys., A.
- Journal Page Range
- 299-310
- ISSN
- 0340-2193
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 7269958
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Is Lead record
- Yes
- Descriptors DEI
- ARGON 40 REACTIONS; CALIFORNIUM 249 TARGET; DEEP INELASTIC SCATTERING; FISSION FRAGMENTS; FOKKER-PLANCK EQUATION; HEAVY ION REACTIONS; INTEGRAL CROSS SECTIONS; MEV RANGE 10-100; MEV RANGE 100-1000; THORIUM 232 TARGET; TIME DEPENDENCE; TRANS 104 ELEMENTS; TRANSFER REACTIONS; TRANSPORT THEORY; URANIUM 238 TARGET
- Descriptors DEC
- CROSS SECTIONS; DIFFERENTIAL EQUATIONS; DIRECT REACTIONS; ELEMENTS; ENERGY RANGE; EQUATIONS; INELASTIC SCATTERING; INTERACTIONS; LEPTON-BARYON INTERACTIONS; LEPTON-HADRON INTERACTIONS; LEPTON-NUCLEON INTERACTIONS; MEV RANGE; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; SCATTERING; TARGETS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS
Optional Information
- Notes
- 3 figs.; 1 tab.; 25 refs.; Updated automatically by Metadata and Full-Text Enrichment Agent