Fitting Single Particle Energies in sdgh Major Shell |
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Authors: | Erdal Dikmen O uz zt rk Yavuz Cengiz |
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Institution: | 1. Department of Physics, Süleyman Demirel University, 32260 Isparta, Turkey;
2. Department of Electronics and Communication Engineering, Süleyman Demirel University, 32260 Isparta, Turkey |
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Abstract: | We have performed two kinds of non-linear fitting procedures to the single-particle energies in the sdgh major shell to obtain better shell model results. The low-lying energy eigenvalues of the light Sn isotopes with A = 103- 110 in the sdgh-shell are calculated in the framework of the nuclear shell model by using CD-Bonn two-body effective nucleonnucleon interaction. The obtained energy eigenvalues are fitted to the corresponding experimental values by using two different non-linear fitting procedures, i.e., downhill simplex method and clonal selection method. The unknown single-particle energies of the states 2s1/2, 1d3/2, and 0h11/2are used in the fitting methods to obtain better spectra of the104,106,108,110 Sn isotopes. We compare the energy spectra of the104,106,108,110 Sn and103,105,107,109 Sn isotopes with/without a nonlinear fit to the experimental results. |
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Keywords: | shell model optimization of single-particle energies Sn isotopes |
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