States in /sup 20/O below 6 MeV excitation via the /sup 18/O(t,p)/sup 20/O reaction

Journal Article · Mon Jan 01 04:00:00 EST 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.19.20· OSTI ID:6384396

Pilt, A A; Shahabuddin, M A.M.; Kuehner, J A

Angular distributions have been measured for the /sup 18/O(t,p) /sup 20/O reaction at a bombarding energy of 15.0 MeV. Nine excited states below 6.02 MeV were observed. Comparison with microscopic two-particle distorted-wave Born approximation calculations yielded the following new J/sup ..pi../ assignments (E/sub x/ in MeV, J/sup ..pi../): 5.382, 0/sup +/; 5.603, 2/sup +/; 6.02, 4/sup +/. Tentative assignments of (1/sup -/,2/sup +/,3/sup -/) and (1/sup -/,2/sup +/) were made to levels at 5.00 and 5.22 MeV, respectively. Spins of 2/sup +/, 4/sup +/, 2/sup +/, and 0/sup +/ to the levels at 1.674, 3.568, 4.065, and 4.446 MeV were confirmed. The experimental spectrum of states below 6 MeV is compared with the results of an (sd)/sup 4/ shell-model calculation using the Preedom-Wildenthal interaction matrix elements. Identification of possible core-excited states in /sup 20/O is discussed.

• Research Organization: Tandem Accelerator Laboratory, McMaster University, Hamilton, Ontario, Canada L8S 4K1
• OSTI ID: 6384396
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 19:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MATRIX ELEMENTS
MEV RANGE
MEV RANGE 10-100
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OXYGEN 18 TARGET
OXYGEN 20
OXYGEN ISOTOPES
PARITY
PARTICLE PROPERTIES
PROTON SPECTRA
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SHELL MODELS
SPECTRA
SPIN
STRIPPING
TARGETS
TRANSFER REACTIONS
TRITON REACTIONS