Expectations of fragment decay from highly excited nuclei

  • The statistical model is used to illustrate the consequences of a successive binary decay mechanism as the initial nuclear excitation is pushed towards the limits of stability. The partition of the excitation energy between light and heavy fragments is explicitly calculated, as are the consequences of the decay of the primary light fragments to particle-bound residual nuclei which would be observed experimentally. The test nucleus 100 44 Ru is considered at initial excitations of 100, 200, 400, and 800 MeV. Exit channels of n, p, and α; and 100 clusters of 3 ≤ Z ≤ 20 ≤ 4, 6 ≤ A ≤ 48 are considered from all nuclides in the deexcitation cascade. The total primary and final cluster yields are shown versus Z and initial excitation. The primary versus final yields are also shown individually for 12C, 26Mg, and 48Ca. We show how multifragmentation yields will change with the excitation energy due to a successive binary decay mechanism. Measurements that may be prone to misinterpretation are discussed, as are those that should be representative of initial nucleus excitation.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:M. Blann, M. G. Mustafa, Georg Peilert, Horst StöckerORCiDGND, Walter GreinerGND
Parent Title (English):Physical review C
Document Type:Article
Date of Publication (online):2006/05/30
Year of first Publication:1991
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/05/30
Page Number:9
First Page:431
Last Page:439
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht