Shafik Shakir Shafik^*, Ali Dawoud Salloum

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Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq.
Department of Physics, College of Science for Women, University of Baghdad, Baghdad, Iraq.
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Abstract: Ericson formula represents the first formula, which was suggested to describe the partial level density (PLD) formula in pre-equilibrium region of the nuclear reactions. Then a number of corrections were added to this formula in order to make it more suitable to physical meaning. In this paper, there are two aims to be done: the first aim is to study the correspondence between one and two-components formulae in Ericson, Pauli, and pairing corrections; the second aim is to compare and study the results of Comprehensive formula, which contents with all corrections, with Ericson, Pauli, and pairing formulae. The Comprehensive formula was suggested to simulate the reality. To achieve these aims the 56Fe and 90Zr nuclei were chosen and the results showed that the difference between one and two-components formulae was too small which can be neglected. Furthermore, the results strongly recommended that for cross section calculations of the nuclear reaction, one must use Comprehensive formula rather than Pauli formula.

Keywords: Partial Level Density; Pre-Equilibrium Model; Nuclear Reaction; Exciton Model; Equidistant Spacing Model; 56Fe; 90Zr

Cite this paper: Shafik, S. and Salloum, A. (2013) Investigation of the Appropriate Partial Level Density Formula for Pre-Equilibrium Nuclear Exciton Model. Journal of Applied Mathematics and Physics, 1, 47-54. doi: 10.4236/jamp.2013.13008.

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