STATES IN O$sup 16$ BETWEEN 12.67 AND 13.80 Mev
Journal Article
·
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
A study of the elastic scattering of protons from N/sup 15/ is reported for proton energies between 600 and 1500 kev and for scattering angles from 75 to 160 deg . The technique for the preparation of the N/sup 15/ targets is discussed Anomalies in the scattering cross section are observed near incident proton energies of 710. 898, 1028, 1210, and 1640 kev, corresponding to states in 0/sup 16/ from 12.78 to 13.65 Mev. Analysis of these scattering data leads to the assignments J == 0/sup -/, J=2/sup -/, J =1/sup -/, J=3/sup -/, and J = 1/sup +/ for the 710, 898, 1028, 1210, and 1640-kev states, respectively. These assignments agree with earlier work except for the 710-kev resonance, which is reported here for the first time, and the 1210-kev level, which was previously reported to be J = 4/sup +/. The angular distribution of the alpha -particles resonant at 1210 kev from the reaction N/sup 15/(p, alpha /sub 1/)C/sup 12/ has been remeasured and requires J = 4/sup +/ as was found previously. However, a measurement for the alpha - gamma angular correlation function at 1210 kev is found to be consistent with J = 3/sup -/ but not J = 4/sup +/. This discrepancy has not been resolved, but the evidence favoring the assignment J = 3/sup -/ is quite strong. Suggestions for the isotopic spin quantum numbers for these five states in 0/sup 16/ are made. (auth)
- Research Organization:
- California Inst. of Tech., Pasadena
- NSA Number:
- NSA-12-003172
- OSTI ID:
- 4342942
- 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- Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 108; ISSN PHRVA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
FURTHER INVESTIGATION OF N$sup 15$ + p REACTIONS
Constraining the S factor of {sup 15}N(p,{gamma}){sup 16}O at astrophysical energies
PROTON CAPTURE BY N$sup 1$$sup 5$
Journal Article
·
Thu Nov 14 23:00:00 EST 1957
· Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
·
OSTI ID:4342490
Constraining the S factor of {sup 15}N(p,{gamma}){sup 16}O at astrophysical energies
Journal Article
·
Sun Nov 14 23:00:00 EST 2010
· Physical Review. C, Nuclear Physics
·
OSTI ID:21499220
PROTON CAPTURE BY N$sup 1$$sup 5$
Journal Article
·
Sun Jan 31 23:00:00 EST 1960
· Nuclear Phys.
·
OSTI ID:4192386
Related Subjects
ALPHA PARTICLES-- ANGULAR DISTRIBUTION-- CARBON 12-- COINCIDENCE METHODS-- CROSS SECTIONS-- ELASTIC SCATTERING-- ENERGY LEVELS-- ENERGY RANGE-- EXCITATION-- GAMMA RADIATION-- ISOSPIN-- MEASURED VALUES-- MEV RANGE-- NITROGEN 15-- NUCLEAR REACTIONS-- OXYGEN 16-- PARITY-- PARTICLE MODELS-- PREPARATION-- PROTON BEAMS-- PROTONS-- RESONANCE-- SCATTERING-- SPIN-- TARGETS
ALPHA PARTICLES-- ANGULAR DISTRIBUTION-- CARBON 12-- CROSS SECTIONS-- ELASTIC SCATTERING-- ELECTRIC CHARGES-- ENERGY LEVELS-- ENERGY RANGE-- EXCITATION-- GAMMA RADIATION-- ISOSPIN-- MEASURED VALUES-- MEV RANGE-- NITROGEN 15-- NUCLEAR REACTIONS-- OXYGEN 16-- PARITY-- PARTICLE MODELS
PHYSICS
ALPHA PARTICLES-- ANGULAR DISTRIBUTION-- CARBON 12-- CROSS SECTIONS-- ELASTIC SCATTERING-- ELECTRIC CHARGES-- ENERGY LEVELS-- ENERGY RANGE-- EXCITATION-- GAMMA RADIATION-- ISOSPIN-- MEASURED VALUES-- MEV RANGE-- NITROGEN 15-- NUCLEAR REACTIONS-- OXYGEN 16-- PARITY-- PARTICLE MODELS
PHYSICS