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Pion production mechanisms in a microscopic model of intermediate energy heavy ion collisions

Comparative features of the Cascade Model and the BUU model are presented and followed by a Quantum Theory Derivation of the Vlasov equation. Several modifications are made to the BUU model: the inclusion of a momentum-dependent potential instead of the usual Skyrme potential, the replacement of the "old" detailed balance cross section for delta reabsorption by the Danielewicz cross section, and a proper generation of the $ Delta$ mass, using a Monte-Carlo simulation. The effects of these ingredients on pion yields at beam kinetic energies in the range (0.4 AGeV-1.8 AGeV), and pion energy spectra at 90$ sp circ$ are analyzed. It is found that our numerical simulations agree quite well with experiments, except for pion energy spectra at low pion kinetic energies.

Identiferoai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.68244
Date January 1994
CreatorsPouliot, Dominique
ContributorsGale, Charles (advisor)
PublisherMcGill University
Source SetsLibrary and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada
LanguageEnglish
Detected LanguageEnglish
TypeElectronic Thesis or Dissertation
Formatapplication/pdf
CoverageMaster of Science (Department of Physics.)
RightsAll items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated.
Relationalephsysno: 001401054, proquestno: AAIMM94502, Theses scanned by UMI/ProQuest.

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