ENERGY-LEVEL STRUCTURE OF O$sup 19$, O$sup 18$, AND O$sup 17$ INVESTIGATED BY (d,p) REACTIONS WITH 15 Mev DEUTERONS

Journal Article · Thu Feb 28 23:00:00 EST 1963 · Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B

DOI:https://doi.org/10.1016/0029-5582(63)90538-8· OSTI ID:4729100

Yagi, K; Nakajima, Y; Katori, K; Awaya, Y; Fujioka, M

The reactions 0/sup 18/(d,p)O/sup 19/, O/sup 17/ (d,p)O/sup 18/, and O/ sup 16 /(d,p)O/sup 17/ are studied with 14.95-Mev deuterons and a broad-range magnetic spectrograph. Absolute cross sections are measured. Angular distributions are analyzed with the Butler-Born theory to determine reduced widths. In O/sup 18/(d,p)O/sup 19/ reactions, energies (Mev), l/sub n,/ and J rature of the d of O/sup 19/ levels obtained are as follows: 0, 2, 5/2/sup +/; 0.096, (2), 3/2/sup +/; 1.468, 0, 1/2/sup +/; (2. 7.248. Assignments in parenthesis are not definitely established. From O/sup 17/(d,p)O/sup 18/ reactions; 4.440, 1, (3)-;, reactions, intense transitions with 1/sub n/,= 2 to the ground ld/sub 5/2/, and 5.083-Mev 1d/sub 3/2/ states and with 1/sub n/,= 0 to 0.871-Mev 2s state are observed, giving 1d and 2s single-particle reduced widths. A strong 1/sub n/, = 3 transition proceeds to 5.697 Mev (J rature of the d =7/2/ sup -/) level, while the transition intensity for the lower 7/2/sup -/ (3.846 Mev) level is 0.18 times as weak. In O/sup 18/(d p)O/sup 19/ reactions, the single-particle character of four strongly excited levels of O/sup 19/ and their correspondence to those of O/sup 17/ are discussed. An estimate is made of the configuration admixtures in the O/sup 18/ ground state taking into account O/sup 18/(d,t)O/sup 17/ reaction data. The presence of 24 ction in DDT-C/ 6% (1f2f)o component (in intensity) is concluded. The experimentally determined admixtures are compared with shell-model calculations. The measured spectroscopic factors for the transitions to the three lowest levels of O/sup 19/ can be interpreted with shell-model wave iunctions of these states and of the O/sup 18/ ground state. (auth)

• Research Organization: Tokyo Univ.
• NSA Number: NSA-17-019315
• OSTI ID: 4729100
• Journal Information: Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B, Journal Name: Nuclear Physics (Netherlands) Divided into Nucl. Phys. A and Nucl. Phys. B Vol. Vol: 41; ISSN NUPHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BORN APPROXIMATION
BUTLER THEORY
CROSS SECTIONS
DECAY
DEUTERONS
ENERGY LEVELS
ENERGY RANGE
EXCITATION
MAGNETIC FIELDS
MEASURED VALUES
MOMENTUM
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
OXYGEN 17
OXYGEN 18
OXYGEN 19
PERTURBATION THEORY
PHYSICS
PROTONS
QUANTUM MECHANICS
SCATTERING
SHELL MODELS
SPECTROMETERS
TRANSITIONS