Multifragmentation: Surface instabilities or statistical decay?
TL;DR: In this paper, Boltzmann-Nordheim-Vlasov calculations show multifragmentation that seems to originate from surface instabilities, which are traced to a sheet instability caused by the proximity interaction.
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About: This article is published in Progress in Particle and Nuclear Physics. The article was published on 01 Jan 1993. and is currently open access. The article focuses on the topics: Nuclear reaction & Radioactive decay.
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Citations
Evidence for the statistical and sequential nature of 16O breakup into four alphas.
J. Pouliot,Luc Beaulieu,B. Djerroud,D. Doré,Richard Laforest,René Roy,C. St-Pierre,Jorge Lopez +7 more
TL;DR: The relation between the folding angle distributions observed in the decay of [sup 16]O into four alphas and the final alpha-alpha interactions is discussed and inferred from model calculations and reveals the statistical nature of the disassembly.
13
Breakup of highly excited 35Cl projectiles on a gold target at 30 A MeV: An exclusive analysis☆
Luc Beaulieu,Richard Laforest,J. Pouliot,René Roy,C. St-Pierre,G.C. Ball,E. Hagberg,D. Horn,R. B. Walker +8 more
TL;DR: In this article, the authors studied the decay of hot nuclei over a wide range of excitation energy in the reaction 35 Cl+ 197 Au at 30 A MeV, and the behavior of the excited nuclei is consistent with a statistical description.
11
Statistical signatures of the quasi-projectile breakup at 70A MeV
D. Doré,Luc Beaulieu,Richard Laforest,J.L. Laville,O. Lopez,J. Pouliot,R. Regimbart,René Roy,J.C. Steckmeyer,C. St-Pierre +9 more
TL;DR: In this article, exit channel cross sections in quasi-elastic and transfer reactions have been measured in the 24Mg+197Au reaction at 70A MeV, and the linear relation between the logarithm of Pn/P2 an d E − 1 2, showed that deexcitation is statistical.
8
Incomplete-fusion-fragmentation model: Multifragmentation data from 600A MeV heavy-ion collisions.
TL;DR: The incomplete-fusion–fragmentation model is modified to analyze ALADIN multifragmentation data of the projectile remnant in reactions of 600 MeV/nucleon Au on different targets.
References
Rapid massive cluster formation.
TL;DR: Calculations of the yield of intermediate mass fragments are made with the expanding-evaporating source model and compared with data and the consequences of distributions in excitation energy, on the observation of multifragmentation, are discussed.
247
Electron- and Bremsstrahlung-Induced Fission of Heavy and Medium-Heavy Nuclei
L. G. Moretto,R.C. Gatti,Stanley G. Thompson,J. T. Routti,Jochen Heisenberg,L. M. Middleman,M. R. Yearian,Robert Hofstadter +7 more
TL;DR: In this article, the photon-interaction cross-sections of the isotopes of the electron and bremsstrahlung-induced fission cross sections have been measured over the energy range 60-1000 MeV and good agreement was obtained on the assumption of $E1$ or $M1$ transitions.
Dynamics and clusterization in nuclear collisions
Kim Sneppen,L. Vinet +1 more
TL;DR: In this article, the authors investigated the competition between evaporation, fission and multifragmentation as a function of bombarding energies and impact parameters, and found that the stage of a possible clusterization appears to be strongly dependent on the energy, such that the fragmentation occurs at a nearly invariant temperature.
57
Multifragment events from heavy-ion collisions: Sources and excitation functions.
Y. Blumenfeld,Nicola Colonna,P. Roussel-Chomaz,D. N. Delis,K. Hanold,J. C. Meng,Graham F. Peaslee,Q.C. Sui,G. J. Wozniak,Luciano G. Moretto,B. Libby,Alice Mignerey,G. Guarino,N. Santoruvo,I. Iori +14 more
TL;DR: A simple transformation has been applied which gives the excitation energy of the fused system in the simple incomplete-fusion picture and these ``excitation functions'' appear to independent of both the system and bombarding energy.
Coulomb instability in collisions between very heavy nuclei around 30 MeV per nucleon
TL;DR: Simulations based on the Landau-Vlasov model of central collisions between very heavy nuclei around 30 MeV per nucleon reveal the occurence of the Coulomb instability as already predicted by static calculations of hot nuclei a few years ago as discussed by the authors.
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