The single-particle level densities for 90Th, at certain exciton number, are
calculated in terms of Equidistant Space Model, ESM, and NON-ESM, of Fermi
Gas Model. It is found that the single particle level density, g, has no longer a
constant value and becomes an energy dependent on the contrary with NON-ESM.
The finite depth of the nuclear well and pairing corrections are examined with
behavior of the single level density for both models. The particle-hole state density
has been calculated, by means of the energy dependence of excited particles and
hole level densities, for one and two fermions systems and different exciton number
in232_90Th. The present results are compared between two models with and without
the inclusion of the finite well depth correction. NON-ESM system has a major
effect in the present calculations at high excitation energies.
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2013
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