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Title: Polarized neutron capture on /sup 13/C

Abstract

The 90/sup 0/ cross section yield curve for the /sup 13/C(n,..gamma../sub 0/) /sup 14/C reaction has been measured from E/sub n/(E/sub x/) = 5.6(13.4) to 17.0(24.0) MeV. Angular distributions of cross section and analyzing power were measured at seven energies spanning this excitation region. In addition, the fore-aft asymmetry and 90/sup 0/ analyzing power were measured as a function of energy from E/sub n/ = 7.75 to 17.0 MeV. The data were compared to direct-semidirect model calculations which included the isovector dipole and isoscalar electric quadrupole transitions. These comparisons indicate the presence of two narrow M1 resonances at E/sub x/ = 16.5 and 17.5 MeV and that sigma(E2) is less than 2% of the total capture cross section in the energy region of this experiment.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Duke University and Triangle Universities Nuclear Laboratory, Duke Station, Durham, North Carolina 27706
OSTI Identifier:
5817750
Resource Type:
Journal Article
Journal Name:
Phys. Rev. C; (United States)
Additional Journal Information:
Journal Volume: 31:4
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CARBON 13 TARGET; NEUTRON REACTIONS; CAPTURE; ANALYZING POWER; ANGULAR DISTRIBUTION; EXPERIMENTAL DATA; M1-TRANSITIONS; MEV RANGE 01-10; MEV RANGE 10-100; POLARIZED BEAMS; TOTAL CROSS SECTIONS; BARYON REACTIONS; BEAMS; CROSS SECTIONS; DATA; DISTRIBUTION; ENERGY RANGE; ENERGY-LEVEL TRANSITIONS; HADRON REACTIONS; INFORMATION; MEV RANGE; MULTIPOLE TRANSITIONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUMERICAL DATA; TARGETS; 651325* - Nuclear Properties & Reactions, A=6-19, Experimental- Nuclear Reactions & Scattering- (-1987); 651323 - Nuclear Properties & Reactions, A=6-19, Experimental- Energy Levels & Transitions- (-1987)

Citation Formats

Wright, M C, Kitazawa, H, Roberson, N R, Weller, H R, Jensen, M, and Tilley, D R. Polarized neutron capture on /sup 13/C. United States: N. p., 1985. Web. doi:10.1103/PhysRevC.31.1125.
Wright, M C, Kitazawa, H, Roberson, N R, Weller, H R, Jensen, M, & Tilley, D R. Polarized neutron capture on /sup 13/C. United States. doi:10.1103/PhysRevC.31.1125.
Wright, M C, Kitazawa, H, Roberson, N R, Weller, H R, Jensen, M, and Tilley, D R. Mon . "Polarized neutron capture on /sup 13/C". United States. doi:10.1103/PhysRevC.31.1125.
@article{osti_5817750,
title = {Polarized neutron capture on /sup 13/C},
author = {Wright, M C and Kitazawa, H and Roberson, N R and Weller, H R and Jensen, M and Tilley, D R},
abstractNote = {The 90/sup 0/ cross section yield curve for the /sup 13/C(n,..gamma../sub 0/) /sup 14/C reaction has been measured from E/sub n/(E/sub x/) = 5.6(13.4) to 17.0(24.0) MeV. Angular distributions of cross section and analyzing power were measured at seven energies spanning this excitation region. In addition, the fore-aft asymmetry and 90/sup 0/ analyzing power were measured as a function of energy from E/sub n/ = 7.75 to 17.0 MeV. The data were compared to direct-semidirect model calculations which included the isovector dipole and isoscalar electric quadrupole transitions. These comparisons indicate the presence of two narrow M1 resonances at E/sub x/ = 16.5 and 17.5 MeV and that sigma(E2) is less than 2% of the total capture cross section in the energy region of this experiment.},
doi = {10.1103/PhysRevC.31.1125},
journal = {Phys. Rev. C; (United States)},
number = ,
volume = 31:4,
place = {United States},
year = {1985},
month = {4}
}