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Population of Bound Excited States in Intermediate-Energy Fragmentation Reactions

By A Obertelli, A Gade, D Bazin, C M Campbell, J M Cook, P D Cottle, A D Davies, D C Dinca, T Glasmacher, P G Hansen, T Hoagland, K W Kemper, J L Lecouey, W F Mueller, R R Reynolds, B T Roeder, J R Terry, J A Tostevin, K Yoneda and H Zwahlen

Abstract

<p>Fragmentation reactions with intermediate-energy heavy-ion beams exhibit a wide range of reaction mechanisms, ranging from direct reactions to statistical processes. We examine this transition by measuring the relative population of excited states in several sd-shell nuclei produced by fragmentation with the number of removed nucleons ranging from two to sixteen. The two-nucleon removal is consistent with a non-dissipative process, whereas the removal of more than five nucleons appears to be mainly statistical.</p

Year: 2006
DOI identifier: 10.1103/PhysRevC.73.044605
OAI identifier: oai:epubs.surrey.ac.uk:298

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