EXPERIMENTS CONCERNING THE LOW-ENERGY STATES OF THE O$sup 19$ NUCLEUS

Journal Article · Fri May 01 04:00:00 EDT 1959 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.114.837· OSTI ID:4225720

Zimmermann, W Jr

Angular distributions have been measured for three groups of protons from the O/sup 18/(d,p)O/sup 19/ reaction, those leaving O/sup 19/ in its states at 0, 0.096 and l.47 Mev. Deuteron energies of 1.74 and 2.50 Mev in the laboratory system were used. The distributions of protons leaving O/sup 19/ in its ground state and in its 1.47-Mev state are characteristic of stripping and indicate the formation of the ground state by an l = 2 neutron and of the l.47- Mev state by an l = 0 neutron. However, the distribution of protons leaving O/ sup 19/ in its 0.096-Mev state does not lend itself to a stripping interpretation. It has been found that the gamma decay of the 1.47-Mev state of O/sup 19/, following the formation of this state in the O/sup 18/(d,p)O/sup 19/ reaction, proceeds mostly to the 0.096-Mev state. The mean life of the 0.096-Mev state has been measured by observing the decay in flight of recoiling excited O/sup 19/ nuclei and is found to be l.75(1 plus or minus 0.16) x l0/sup -9/ second. These observations restrict the likely assignments of spin and parity for the 0.096-Mev state to 3/2/sup plus or minus / or 5/2/sup =/. (auth)

• Research Organization: California Inst. of Tech., Pasadena
• NSA Number: NSA-13-017264
• OSTI ID: 4225720
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 114; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
DECAY
DEUTERON BEAMS
ENERGY LEVELS
ENERGY RANGE
EXCITATION
GAMMA RADIATION
HALF-LIFE
IONIZATION
MEASURED VALUES
MEV RANGE
MOMENTUM
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
OXYGEN 18
OXYGEN 19
PARITY
PHYSICS AND MATHEMATICS
PROTONS
RECOILS
SPECTRA
SPIN
STRIPPING