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Anregungsfunktionen für Compoundkernprozesse in geschlossener Form

Excitation functions in closed form for compound-nucleus reaction mechanism

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Zeitschrift für Physik

Abstract

Theoretical excitation functions in closed form for compound-nucleus reaction mechanism followed by nuclear evaporation are presented. Competition of neutron emission and charged-particle evaporation at the various stages of the evaporation chain are taken into account. The formula is derived in the framework of the nuclear evaporation model of Weisskopf using conventional Fermi gas level densities and continuum-theory reaction cross sections approximated by an empirical formula by Dostrovsky.

Experimental and theoretical excitation functions are compared. The agreement of the experimental results with those calculated using our closed formula, while not entirely satisfactory, is as good as with those computed numerically with considerable effort by other authors.

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Authors and Affiliations

  1. Fachbereich Physik der Philipps-Universität Marburg, Deutschland

    P. -A. Gottschalk

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  1. P. -A. Gottschalk
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Auszug aus der Dissertation [31] des Verfassers.

Mein Dank gilt in erster Linie Herrn Prof. Dr. G. Grawert für die Anregung zu dieser Arbeit und seine konstruktive Kritik an ihr. Den Mitarbeitern des Institutes für Theoretische Physik IV, der jetzigen Arbeitsgruppe „Streutheorie und Kernreaktionen“, danke ich für ihre Diskussionsbereitschaft, insbesondere Herrn Dr. F. Kitzka für seine Unterstützung bei der Lösung mathematischer Probleme. Mein Dank gilt weiterhin Herrn Prof. Dr. R. Brandt, dem Leiter der Arbeitsgruppe „Kernreaktionen“ des Fachbereichs Physikalische Chemie, für seine Freundlichkeit, mir anregende Diskussionen mit seinen Gästen, M. Blann, J.R. Nix und N.T. Porile ermöglicht zu haben.

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Gottschalk, P.A. Anregungsfunktionen für Compoundkernprozesse in geschlossener Form. Z. Physik 266, 347–356 (1974). https://doi.org/10.1007/BF01674828

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  • DOI: https://doi.org/10.1007/BF01674828

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