Cluster Emission for the Pre-equilibrium Exciton Model with Spin Variables

We address the angular momentum effects within the state density approach to the Iwamoto-Harada-(Bisplinghoff) model of the pre-equilibrium cluster emission. Using this way, the cluster emission is independent of the cluster formation probability, which — using a rough approximation — contains also...

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Bibliographic Details
Published in:Nuclear data sheets 2014-04, Vol.118, p.284-286
Main Author: Běták, E.
Format: Article
Language:English
Online Access:Get full text
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Summary:We address the angular momentum effects within the state density approach to the Iwamoto-Harada-(Bisplinghoff) model of the pre-equilibrium cluster emission. Using this way, the cluster emission is independent of the cluster formation probability, which — using a rough approximation — contains also all angular momenta couplings related to the creation of a cluster in nuclear reaction. Consequently, the angular-momentum part of the cluster emission rate is formally the same as it is in the nucleon emission case (but energy parts are substantially different). The 197Au(p,α) reaction at 62 MeV serves as an illustration of the suggested model. Inclusion of spin variables causes the enhancement of the α channel (and a weakening of the sum of nucleon channels due to particle emission competition) compared to the spin-independent case.
ISSN:0090-3752
1095-9904
DOI:10.1016/j.nds.2014.04.059