Determination of unbound states in /sup 35/S from neutron total and capture cross-section measurements on /sup 34/S
The high neutron resolution capability of the Oak Ridge Electron Linear Accelerator has been used to investigate the unbound region of /sup 35/S via neutron resonance spectroscopy studies of the /sup 34/S+n system. The total cross section of /sup 34/S was measured over the neutron energy range from 90 to 1500 keV, and the capture cross section was measured over the range from 30 to 1100 keV. Analysis of the data yielded spectroscopic factors for the s states in the unbound region for excitation energies from 7 to 8 MeV. Continuum shell model calculations of the s and d states were also performed for both the bound and the unbound regions of /sup 35/S. In general, the measured and calculated neutron strengths for s waves in the unbound region are in reasonable agreement, although the fragmentation of single-particle strength seen experimentally is somewhat higher than that predicted. Core-particle calculations for the p states in the unbound region of /sup 35/S were also performed, and, on the basis of all these results, plus those of others, we have summarized our understanding of the distributions of single-particle neutron strengths in the s, p, and d states of /sup 35/S for excitation energies up to 8.5 MeV.
- Research Organization:
- Middle Tennessee State University, Murfreesboro, Tennessee 37132
- OSTI ID:
- 6793384
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 29:6; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Neutron knockout of {sup 12}Be populating neutron-unbound states in {sup 11}Be
STATISTICAL FLUCTUATIONS IN THE CROSS SECTIONS OF THE REACTIONS Cl$sup 35$(p,$alpha$)S$sup 32$ AND Cl$sup 37$(p,$alpha$)S$sup 3$$sup 4$
Related Subjects
A=20-38
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CAPTURE
CROSS SECTIONS
DATA
DAYS LIVING RADIOISOTOPES
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FUNCTIONS
HADRON REACTIONS
INFORMATION
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NEUTRON REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PARTICLE-CORE MODEL
RADIOISOTOPES
RESONANCE
SHELL MODELS
SPECTROSCOPIC FACTORS
STRENGTH FUNCTIONS
SULFUR 34 TARGET
SULFUR 35
SULFUR ISOTOPES
TARGETS
TOTAL CROSS SECTIONS