Test of nuclear level density inputs for Hauser-Feshbach model calculations

Abstract

The energy spectra of neutrons, protons, and alpha-particles have been measured from the d+59Co and 3He+58Fe reactions leading to the same compound nucleus, 61$Ni. The experimental cross sections have been compared to Hauser-Feshbach model calculations using different input level density models. None of them have been found to agree with experiment. It manifests the serious problem with available level density parameterizations especially those based on neutron resonance spacings and density of discrete levels. New level densities and corresponding Fermi-gas parameters have been obtained for reaction product nuclei such as 60Ni,60Co, and 57Fe.

References in corpus (4)

• Nuclear Level Density and the Determination of Thermonuclear Rates for Astrophysics
• The nuclear moment of inertia and spin distribution of nuclear levels
• Level density of ${}^{56}$Fe and low-energy enhancement of $\gamma$-strength function
• Evolution of level density step structures from 56,57-Fe to 96,97-Mo

Cited by in corpus (16)

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• The Edwards Accelerator Laboratory at Ohio University
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• A fully microscopic model of total level density in spherical nuclei
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• Equilibrium and pre-equilibrium processes in the 55Mn(6Li,xp) and 57Fe(a,xp) reactions
• Nuclear level density studied in odd-mass nuclei in the framework of the projected shell model
• Constant temperature description of the nuclear level densities