Microscopic study of spin cut-off factors of nuclear level densities
- Chemistry Department, Middle East Technical University, Ankara (Turkey)
Level densities and spin cut-off factors have been investigated within the microscopic approach based on the 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 spin cut-off parameters {sigma}{sup 2}(E) have also been obtained from the Gilbert and Cameron expression and from rigid body calculations. The results were compared with their corresponding macroscopic values. It was found that the values of {sigma}{sup 2}(E) did not increase smoothly with A as expected based on macroscopic theory. Instead, the values of {sigma}{sup 2}(E) show structure reflecting the angular momentum of the shell model orbitals near the Fermi energy.
- OSTI ID:
- 20995201
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 75, Issue 4; Other Information: DOI: 10.1103/PhysRevC.75.044308; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
The isomeric cross section ratios (ICSR) method at the investigation of the role of isospin at the population compound states cloused yrast band in the nuclear reactions with neutron heavy ions
Experimental differential cross sections, level densities, and spin cutoffs as a testing ground for nuclear reaction codes