Assessing the Evolutionary Nature of Multifragment Decay
Journal Article
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· Physical Review Letters
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- Department of Chemistry and Indiana University Cyclotron Facility, Indiana University, Bloomington, Indiana 47405 (United States)
- National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)
- Department of Chemistry, Washington University, St. Louis, Missouri 63130 (United States)
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53076 (United States)
Multifragment decays of central collisions in {sup 84}Kr+{sup 197}Au at {ital E}/{ital A}=35, 55, and 70 MeV are studied. The dependence of the extracted emission time on the velocity of the fragment pair is investigated. More energetic pairs manifest a stronger Coulomb interaction, indicating emission from a source of smaller spatial-temporal extent than less energetic pairs. This trend can be understood in the context of a statistical model that allows the source characteristics to evolve as the fragments are emitted.
- DOE Contract Number:
- FG02-92ER40714
- OSTI ID:
- 116003
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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