Mass-number and excitation-energy dependence of the spin cutoff parameter
- Ohio Univ., Athens, OH (United States)
Here, the spin cutoff parameter determining the nuclear level density spin distribution ρ(J) is defined through the spin projection as < J2z > 1/2 or equivalently for spherical nuclei, (< J(J+1) >/3)1/2. It is needed to divide the total level density into levels as a function of J. To obtain the total level density at the neutron binding energy from the s-wave resonance count, the spin cutoff parameter is also needed. The spin cutoff parameter has been calculated as a function of excitation energy and mass with a super-conducting Hamiltonian. Calculations have been compared with two commonly used semiempirical formulas. A need for further measurements is also observed. Some complications for deformed nuclei are discussed. The quality of spin cut off parameter data derived from isomeric ratio measurement is examined.
- Research Organization:
- Ohio Univ., Athens, OH (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- NA0002905; FG02-88ER40387
- OSTI ID:
- 1338916
- Alternate ID(s):
- OSTI ID: 1261697
- Journal Information:
- Physical Review C, Vol. 94, Issue 1; ISSN 2469-9985
- Publisher:
- APSCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Level density rotational enhancement factor
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journal | June 2019 |
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