Treatment of Cluster Channels in Nuclear Reactions

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funktionen selbst kann also allenfalls darin gesehen werden, daß die ersten beiden Koeffizienten in ( 1) ungefähr gleich dem arithmetischen Mittel der Ko­ effizienten in Tab. 3 sind. Vergleicht man dagegen bei den nach den beiden Methoden bestimmten Zustandsfunktionen die Elek­ tronendichte im 3-dimensionalen Raum, so findet man nur geringfügige Unterschiede. Als Beleg dafür ist in der Abb. 6 die Elektronendichte längs der Kernverbindungslinie gezeichnet, und zwar in ge­ strichelten Kurven für die Ransil-Funktion, in aus­ gezogenen Kurven für und nur durch einige Kreuze angedeutet für • Obgleich nun die Abbil­ dungen für das Dichte„plateau“ um die Molekül­ mitte deutlich einen höheren Wert bei der RansilFunktion zeigen, ist doch die Folgerung zu ziehen, daß die drei Funktionen V ’ R a n s i l , Y’a , iph in diesem Gebiet zu fast gleicher Dichte führen würden, wenn die Kernabstände gleich wären; denn bei der Ver­ kürzung des Abstands von 5,224 und 5,051 ist na­ türlich eine Erhöhung der Dichte um den Faktor (5,224/ 5,051)3, d .h . um 11% zu erwarten. Nur der über diese 11% hinausgehende Unterschied zwi­ schen den Dichten ist also als echter Unterschied an­ zusehen. Er ist sehr klein und rührt her von der Gleichheit der Koeffizienten für homöopolare und ionische Anteile und dem Aufbrechen der K-Schale bei der Ransilschen Zustandsfunktion.

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تاریخ انتشار 2013