You need JavaScript to view this

Simulations of collisions between N-body classical systems in interaction; Simulations de collisions entre systemes classiques a n-corps en interaction

Abstract

The Classical N-body Dynamics (CNBD) is dedicated to the simulation of collisions between classical systems. The 2-body interaction used here has the properties of the Van der Waals potential and depends on just a few parameters. This work has two main goals. First, some theoretical approaches assume that the dynamical stage of the collisions plays an important role. Moreover, colliding nuclei are supposed to present a 1. order liquid-gas phase transition. Several signals have been introduced to show this transition. We have searched for two of them: the bimodality of the mass asymmetry and negative heat capacity. We have found them and we give an explanation of their presence in our calculations. Second, we have improved the interaction by adding a Coulomb like potential and by taking into account the stronger proton-neutron interaction in nuclei. Then we have figured out the relations that exist between the parameters of the 2-body interaction and the properties of the systems. These studies allow us to fit the properties of the classical systems to those of the nuclei. In this manuscript the first results of this fit are shown. (author)
Authors:
Morisseau, Francois [1] 
  1. Laboratoire de Physique Corpusculaire de CAEN, ENSICAEN, Universite de Caen Basse-Normandie, UFR des Sciences, 6 bd Marechal Juin, 14050 Caen Cedex (France)
Publication Date:
May 15, 2006
Product Type:
Thesis/Dissertation
Report Number:
INIS-FR-6709
Resource Relation:
Other Information: TH: Thesis (Doctorat de l'Universite de Caen); 111 refs., 111 figs., 10 tabs
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COMPUTERIZED SIMULATION; COULOMB FIELD; HEAVY ION REACTIONS; MANY-BODY PROBLEM; PROTON-NEUTRON INTERACTIONS; THERMAL EQUILIBRIUM; THERMODYNAMIC MODEL; TWO-BODY PROBLEM; VAN DER WAALS FORCES
OSTI ID:
20953968
Research Organizations:
Laboratoire de Physique Corpusculaire de CAEN, ENSICAEN, Universite de Caen Basse Normandie, UFR des Sciences, 6 bd Marechal Juin, 14050 Caen Cedex (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR0703286105284
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
206 pages
Announcement Date:
Dec 21, 2007

Citation Formats

Morisseau, Francois. Simulations of collisions between N-body classical systems in interaction; Simulations de collisions entre systemes classiques a n-corps en interaction. France: N. p., 2006. Web.
Morisseau, Francois. Simulations of collisions between N-body classical systems in interaction; Simulations de collisions entre systemes classiques a n-corps en interaction. France.
Morisseau, Francois. 2006. "Simulations of collisions between N-body classical systems in interaction; Simulations de collisions entre systemes classiques a n-corps en interaction." France.
@misc{etde_20953968,
title = {Simulations of collisions between N-body classical systems in interaction; Simulations de collisions entre systemes classiques a n-corps en interaction}
author = {Morisseau, Francois}
abstractNote = {The Classical N-body Dynamics (CNBD) is dedicated to the simulation of collisions between classical systems. The 2-body interaction used here has the properties of the Van der Waals potential and depends on just a few parameters. This work has two main goals. First, some theoretical approaches assume that the dynamical stage of the collisions plays an important role. Moreover, colliding nuclei are supposed to present a 1. order liquid-gas phase transition. Several signals have been introduced to show this transition. We have searched for two of them: the bimodality of the mass asymmetry and negative heat capacity. We have found them and we give an explanation of their presence in our calculations. Second, we have improved the interaction by adding a Coulomb like potential and by taking into account the stronger proton-neutron interaction in nuclei. Then we have figured out the relations that exist between the parameters of the 2-body interaction and the properties of the systems. These studies allow us to fit the properties of the classical systems to those of the nuclei. In this manuscript the first results of this fit are shown. (author)}
place = {France}
year = {2006}
month = {May}
}