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Intermediate energies heavy ion collisions : study of the charged particles emission dynamics and emitters characterization; Collisions d`ions lourds aux energies intermediaires: etude de la dynamique d`emission des particules chargees et caracterisation des emetteurs

Abstract

In heavy ion collisions at intermediate energies, reaction processes are ranging from slow processes where equilibrium is achieved between every emission, up to direct processes where nucleon nucleon scattering and phase space availability are the deciding factors. In order to investigate this transition, both the emission dynamics and the characteristics of the emitter have been studied, both theoretically and experimentally in the AMPHORA detector, for the systems 7, 17, 27 and 34 AMeV, {sup 40}Ar+Al, {sup 40}Ar+Cu and {sup 40}Ar+Ag. First, the linear momentum transfer of the most central collisions has been evaluated for these systems, by measuring the velocity of heavy residues. Then, by measuring azimuthal angle correlations functions, and by comparing them with statistical model predictions, the average angular momentum of the emitter has been evaluated. To study the charged particles emission dynamics, experimental azimuthal angle and relative momentum correlation functions have been compared with simulations based on a classical trajectory model. Finally, predictions of an advanced BUU model have been studied for the system 34 AMeV 40 Ar+Al. (authors). 69 refs., 52 figs., 5 tabs.
Authors:
Publication Date:
Jul 01, 1994
Product Type:
Thesis/Dissertation
Report Number:
ISN-94-88
Reference Number:
SCA: 663450; PA: AIX-27:058324; EDB-96:124124; NTS-97:000766; SN: 96001635676
Resource Relation:
Other Information: TH: These (D. es Sc.).; PBD: Jul 1994
Subject:
66 PHYSICS; DYNAMICS; QUASI-FISSION; ALUMINIUM; ANGULAR CORRELATION; ANGULAR DISTRIBUTION; ANGULAR MOMENTUM; ARGON 40; ARGON 40 REACTIONS; CALIBRATION; COMPUTERIZED SIMULATION; COPPER; CORRELATION FUNCTIONS; COULOMB FIELD; CROSS SECTIONS; DATA ACQUISITION SYSTEMS; DETECTION; DEUTERIUM; DEUTERONS; ENERGY SPECTRA; EVAPORATION; GAMMA RADIATION; HEAVY ION FUSION REACTIONS; HELIUM 4; HYDRODYNAMIC MODEL; LINEAR MOMENTUM TRANSFER; LITHIUM; M CODES; MEV RANGE 01-10; MEV RANGE 10-100; NEUTRONS; PARTICLE IDENTIFICATION; PROTONS; QUASI PARTICLES; RESIDUES; SCATTERING; SILVER
OSTI ID:
265953
Research Organizations:
Grenoble-1 Univ., 38 (France). Inst. des Sciences Nucleaires; Grenoble-1 Univ., 38 (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Other: ON: DE96632621; TRN: FR9601058058324
Availability:
INIS; OSTI as DE96632621
Submitting Site:
FRN
Size:
144 p.
Announcement Date:
Aug 16, 1996

Citation Formats

Bauge, E. Intermediate energies heavy ion collisions : study of the charged particles emission dynamics and emitters characterization; Collisions d`ions lourds aux energies intermediaires: etude de la dynamique d`emission des particules chargees et caracterisation des emetteurs. France: N. p., 1994. Web.
Bauge, E. Intermediate energies heavy ion collisions : study of the charged particles emission dynamics and emitters characterization; Collisions d`ions lourds aux energies intermediaires: etude de la dynamique d`emission des particules chargees et caracterisation des emetteurs. France.
Bauge, E. 1994. "Intermediate energies heavy ion collisions : study of the charged particles emission dynamics and emitters characterization; Collisions d`ions lourds aux energies intermediaires: etude de la dynamique d`emission des particules chargees et caracterisation des emetteurs." France.
@misc{etde_265953,
title = {Intermediate energies heavy ion collisions : study of the charged particles emission dynamics and emitters characterization; Collisions d`ions lourds aux energies intermediaires: etude de la dynamique d`emission des particules chargees et caracterisation des emetteurs}
author = {Bauge, E}
abstractNote = {In heavy ion collisions at intermediate energies, reaction processes are ranging from slow processes where equilibrium is achieved between every emission, up to direct processes where nucleon nucleon scattering and phase space availability are the deciding factors. In order to investigate this transition, both the emission dynamics and the characteristics of the emitter have been studied, both theoretically and experimentally in the AMPHORA detector, for the systems 7, 17, 27 and 34 AMeV, {sup 40}Ar+Al, {sup 40}Ar+Cu and {sup 40}Ar+Ag. First, the linear momentum transfer of the most central collisions has been evaluated for these systems, by measuring the velocity of heavy residues. Then, by measuring azimuthal angle correlations functions, and by comparing them with statistical model predictions, the average angular momentum of the emitter has been evaluated. To study the charged particles emission dynamics, experimental azimuthal angle and relative momentum correlation functions have been compared with simulations based on a classical trajectory model. Finally, predictions of an advanced BUU model have been studied for the system 34 AMeV 40 Ar+Al. (authors). 69 refs., 52 figs., 5 tabs.}
place = {France}
year = {1994}
month = {Jul}
}