Microscopic study of nuclear level density

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2007
Gholami, Mehrdad
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Level densities and spin cut-off factors have been investigated within the microscopic approach based on BCS Hamiltonian. In particular the spin cut-off parameters have been calculated at neutron binding energies over a large range of nuclear mass using the BCS theory. The results are compared with their corresponding macroscopic values. It is found that the values of spin cut-off parameter do not increase smoothly with A as expected based on macroscopic theory. Instead, the values of spin cut-off parameter show structures re°ecting the angular momentum of the shell model orbitals near the Fermi energy. The spin cut-off parameter has also been computed from the knowl- edge of nuclear level density, at neutron binding energy, Bn and the average s-wave neutron spacing. The values of spin cut-off parameter are compared with their corresponding values from the model calculations. The in°uence of the isospin in nuclear level density in particular the isospin cut-off parameter has also been investigated and are compared with their corre- sponding spin cut-off parameters.
Chemistry.
http://etd.lib.metu.edu.tr/upload/12608487/index.pdf
https://hdl.handle.net/11511/17232
Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats
M. Gholami, “Microscopic study of nuclear level density,” Ph.D. - Doctoral Program, Middle East Technical University, 2007.
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