Investigations on Emission Sources in ProtonNucleus and NucleusNucleus Collisions
(2000) Abstract
 Emission sources in protonnucleus and nucleusnucleus collisions at intermediate energies have been studied.
Pion excitation functions from the absolute threshold to 500 MeV have been measured with an ion beam of continuously varying energy with an energy resolution of 1 MeV. Total yields, angular distributions and target mass dependences are compared to QMD and BUU calculations.
Proton/deuteron/triton ratios have been measured in p + Kr, 16O + Kr and 20Ne + Ar reactions with a continuously varying beam energy up to 500 AMeV. Experimental ratios are compared to calculations from statistical models as well as dynamical models. Statistical models fail to reproduce the experimental data, whereas the... (More)  Emission sources in protonnucleus and nucleusnucleus collisions at intermediate energies have been studied.
Pion excitation functions from the absolute threshold to 500 MeV have been measured with an ion beam of continuously varying energy with an energy resolution of 1 MeV. Total yields, angular distributions and target mass dependences are compared to QMD and BUU calculations.
Proton/deuteron/triton ratios have been measured in p + Kr, 16O + Kr and 20Ne + Ar reactions with a continuously varying beam energy up to 500 AMeV. Experimental ratios are compared to calculations from statistical models as well as dynamical models. Statistical models fail to reproduce the experimental data, whereas the dynamical models are only able to reproduce the experimental if a finalstate interaction is introduced via the coalescence prescription. It is also shown that entropy cannot be directly dtermined from these ratios.
Correlation functions for two neutron, two proton and neutronproton pairs as well as singles measuremnts have been measured simultaneously in the E/A = 45 MeV 58Ni27Al reaction, and are compared to calculations from a statistical model. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/record/40954
 author
 Mårtensson, Johan ^{LU}
 opponent

 Gaardhöje, Jens Jörgen, Köpenhamn
 organization
 publishing date
 2000
 type
 Thesis
 publication status
 published
 subject
 keywords
 High energy interactions, Fysik, Physics, correlation function., fermion interferometry, t/p and d/p ratios, target mass dependence, pion angular distribution, pion excitation function, Heavy ion reactions, intermediate energy, cosmic rays, Kosmisk strålning, högenergi
 pages
 84 pages
 publisher
 Department of Physics, Lund University
 defense location
 Lecture Hall A of the Department of Physics
 defense date
 20001117 13:15
 external identifiers

 Other:ISRN: LUNFD6/NFFK1018SE84P
 ISBN
 9162844733
 language
 English
 LU publication?
 yes
 id
 f2e47b484f554b3989c148a95911c3d4 (old id 40954)
 date added to LUP
 20070801 15:38:32
 date last changed
 20160919 08:45:07
@misc{f2e47b484f554b3989c148a95911c3d4, abstract = {Emission sources in protonnucleus and nucleusnucleus collisions at intermediate energies have been studied.<br/><br> <br/><br> Pion excitation functions from the absolute threshold to 500 MeV have been measured with an ion beam of continuously varying energy with an energy resolution of 1 MeV. Total yields, angular distributions and target mass dependences are compared to QMD and BUU calculations.<br/><br> <br/><br> Proton/deuteron/triton ratios have been measured in p + Kr, 16O + Kr and 20Ne + Ar reactions with a continuously varying beam energy up to 500 AMeV. Experimental ratios are compared to calculations from statistical models as well as dynamical models. Statistical models fail to reproduce the experimental data, whereas the dynamical models are only able to reproduce the experimental if a finalstate interaction is introduced via the coalescence prescription. It is also shown that entropy cannot be directly dtermined from these ratios.<br/><br> <br/><br> Correlation functions for two neutron, two proton and neutronproton pairs as well as singles measuremnts have been measured simultaneously in the E/A = 45 MeV 58Ni27Al reaction, and are compared to calculations from a statistical model.}, author = {Mårtensson, Johan}, isbn = {9162844733}, keyword = {High energy interactions,Fysik,Physics,correlation function.,fermion interferometry,t/p and d/p ratios,target mass dependence,pion angular distribution,pion excitation function,Heavy ion reactions,intermediate energy,cosmic rays,Kosmisk strålning,högenergi}, language = {eng}, pages = {84}, publisher = {ARRAY(0x87d7ce0)}, title = {Investigations on Emission Sources in ProtonNucleus and NucleusNucleus Collisions}, year = {2000}, }