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Photoneutron cross sections for /sup 14/C

Journal Article · · Phys. Rev. C; (United States)
; ; ; ; ;

The photoneutron cross sections for /sup 14/C (sigma(..gamma..,1n) and sigma(..gamma..,2n)) have been measured up to 36 MeV using monochromatic photons. The cross section for the emission of a single neutron displays a very prominent resonance near 15 MeV which appears to decay primarily to the ground state of /sup 13/C. The (..gamma..,2n) cross section is sharply peaked at 26 MeV and is large compared with those for /sup 12/C and /sup 13/C. The integrated total photoneutron cross section up to 36 MeV is 126 +- 12 MeV mb (61% of the Thomas-Reiche-Kuhn sum-rule value). The /sup 14/C photoneutron cross sections are interpreted in terms of the reaction kinematics and the competition among the particle channels in order to provide information on the isospin properties of the major E1 states in /sup 14/C and on the validity of the weak core-coupling model.

Research Organization:
Saskatchewan Accelerator Laboratory, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 0W0
OSTI ID:
5599321
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 32:2; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651323 -- Nuclear Properties & Reactions
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON 14 TARGET
CARBON ISOTOPES
CROSS SECTIONS
DATA
E1-TRANSITIONS
ELEMENTARY PARTICLES
EMISSION
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FERMIONS
GIANT RESONANCE
HADRONS
INFORMATION
ISOSPIN
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
MULTIPOLE TRANSITIONS
NEUTRON EMISSION
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
PARTICLE PROPERTIES
PHOTONEUTRONS
PHOTONUCLEAR REACTIONS
PHOTONUCLEONS
RADIOISOTOPES
RESONANCE
TARGETS
TOTAL CROSS SECTIONS
YEARS LIVING RADIOISOTOPES