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REACTION C$sup 14$(p,n)N$sup 1$$sup 4$

Journal Article · · Physical Review (U.S.) Superseded in part by Phys.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
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The reaction C/sup 14/(p,n)N/sup 14/ was studied up to 5 Mev bombarding proton energy with good resolution using targets of high isotopic enrichment. Levels previously unseen in this reaction were found at proton energies of 3.19 ( GAMMA = 6 kev), 3.38 ( GAMMA = 24 kev),3.63 ( GAMMA = 13 kev),3.89 ( GAMMA = 35 kev), 4.19 ( GAMMA = 112 kev), 4.24 ( GAMMA = 27 kev), 4.61 ( GAMMA = 140 kev), and 4.93 Mev ( GAMMA = 106 kev). Excitation curves at three angles in the region of 2.9 Mev proton energy show the effect of the previously known J = /sup 7/2 - ( GAMMA = 80 kev) resonance interfering with a level of opposite parity. Effects of the nearby J = /sup 7/2/ - ( GAMMA = 40 kev) level were not seen, presumably due to the low penetrability of the outgoing F-wave neutron. The thresholds for the second and third neutron groups were investigated using a lithium iodide detector. A new threshold, that for production of the third neutron group, was measured to be 4.910 plus or minus 0.008 Mev in agreement with the known energy of the second excited state in N/sup 14/. (auth)
Research Organization:
Oak Ridge National Lab., Tenn.
NSA Number:
NSA-14-024891
OSTI ID:
4136406
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Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 119; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ANGULAR DISTRIBUTION
CARBON 14
ENERGY LEVELS
ENERGY RANGE
ENRICHMENT
EXCITATION
LITHIUM IODIDES
MEASURED VALUES
NEUTRON DETECTION
NEUTRONS
NITROGEN 14
NUCLEAR REACTIONS
PARITY
PHYSICS
PROTON BEAMS
RESOLUTION
RESONANCE
SPIN
TARGETS
WIDTH