You need JavaScript to view this

Studies of nuclear matter under extreme conditions: Heavy-ion interactions at ultra-relativistic energies

Abstract

The charged particle production in ultra-relativistic nucleus-nucleus collisions in the energy range 4-200 A GeV has been studied. Two different experimental techniques have been utilized: nuclear emulsions and multi-step avalanche chambers. The performance of the chambers in the experiment as well as the analysis of the chamber data are described in the thesis. The reconstructed particle momenta have been used to study transverse momentum distribution of negatively charged particles, and to perform intensity interferometry analyses in order to determine the source size and study the time-evolution of the interactions. Multiplicity and pseudorapidity distributions of singly charged particles obtained from interactions in nuclear emulsion have been studied. Simulations have been performed with various Monte-Carlo models, and particularly the effects of the hadronic rescattering have been studied. The results of the analysis have illustrated the great importance of the nuclear geometry in ultra-relativistic nucleus-nucleus collisions. Based on gaussian parametrizations a method of predicting the pseudorapidity distributions in systems of different sizes and at different energies has been developed. Furthermore, the multiplicity and angular distributions of slow, target associated particles have been analyzed. 99 refs, 19 figs.
Authors:
Publication Date:
Oct 01, 1996
Product Type:
Thesis/Dissertation
Report Number:
LUNFD6-NFFK-1011
Reference Number:
SCA: 663450; PA: AIX-28:020212; EDB-97:030824; NTS-97:007566; SN: 97001736922
Resource Relation:
Other Information: TH: Dissertation (FD).; PBD: Oct 1996
Subject:
66 PHYSICS; HEAVY ION REACTIONS; TEV RANGE; GEV RANGE 100-1000; GOLD 197 BEAMS; IONIZATION CHAMBERS; LEAD 208 BEAMS; NUCLEAR EMULSIONS; OXYGEN 16 BEAMS; PARTICLE PRODUCTION; PARTICLE RAPIDITY; QUARK MATTER; SILICON 28 BEAMS; SULFUR 32 BEAMS; TRANSVERSE MOMENTUM
OSTI ID:
430102
Research Organizations:
Lund Univ. (Sweden). Dept. of Physics
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Other: ON: DE97615177; ISBN 91-628-2185-7; TRN: SE9700019020212
Availability:
INIS; OSTI as DE97615177
Submitting Site:
SWDN
Size:
79 p.
Announcement Date:
Feb 24, 1997

Citation Formats

Nystrand, J. Studies of nuclear matter under extreme conditions: Heavy-ion interactions at ultra-relativistic energies. Sweden: N. p., 1996. Web.
Nystrand, J. Studies of nuclear matter under extreme conditions: Heavy-ion interactions at ultra-relativistic energies. Sweden.
Nystrand, J. 1996. "Studies of nuclear matter under extreme conditions: Heavy-ion interactions at ultra-relativistic energies." Sweden.
@misc{etde_430102,
title = {Studies of nuclear matter under extreme conditions: Heavy-ion interactions at ultra-relativistic energies}
author = {Nystrand, J}
abstractNote = {The charged particle production in ultra-relativistic nucleus-nucleus collisions in the energy range 4-200 A GeV has been studied. Two different experimental techniques have been utilized: nuclear emulsions and multi-step avalanche chambers. The performance of the chambers in the experiment as well as the analysis of the chamber data are described in the thesis. The reconstructed particle momenta have been used to study transverse momentum distribution of negatively charged particles, and to perform intensity interferometry analyses in order to determine the source size and study the time-evolution of the interactions. Multiplicity and pseudorapidity distributions of singly charged particles obtained from interactions in nuclear emulsion have been studied. Simulations have been performed with various Monte-Carlo models, and particularly the effects of the hadronic rescattering have been studied. The results of the analysis have illustrated the great importance of the nuclear geometry in ultra-relativistic nucleus-nucleus collisions. Based on gaussian parametrizations a method of predicting the pseudorapidity distributions in systems of different sizes and at different energies has been developed. Furthermore, the multiplicity and angular distributions of slow, target associated particles have been analyzed. 99 refs, 19 figs.}
place = {Sweden}
year = {1996}
month = {Oct}
}