Nucleon directsemidirect radiative capture with SkyrmeHartreeFockBCS bound states
Abstract
The nucleon directsemidirect (DSD) capture cross sections are obtained by calculating a transition amplitude to the HartreeFockBCS bound states. The radial matrix elements in the DSD amplitudes are calculated from the radial part of the singleparticle wave functions. For deformed nuclei the singleparticle states are expanded in the cylindrical harmonicoscillator basis and then projected on the spherical harmonicoscillator basis. The pairing correlations are treated in the BCS approach and the calculated spectroscopic factors are in fairly good agreement with experimental data in the even tin isotopes from {sup 116}Sn to {sup 124}Sn. The resulting DSD cross sections for the neutron capture by {sup 208}Pb and {sup 238}U are found to be in good agreement with the available experimental data. The calculations are also performed for the neutron capture on {sup 122}Sn and {sup 132}Sn isotopes that are important for the rprocess in astrophysics.
 Authors:
 Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
 (Japan)
 Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 3191195 (Japan)
 Publication Date:
 OSTI Identifier:
 20995304
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevC.75.054618; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BOUND STATE; CAPTURE; CROSS SECTIONS; CYLINDRICAL CONFIGURATION; DEFORMED NUCLEI; HARMONIC OSCILLATORS; HARTREEFOCK METHOD; LEAD 208; MATRIX ELEMENTS; NEUTRON REACTIONS; NUCLEONS; R PROCESS; SKYRME POTENTIAL; SPECTROSCOPIC FACTORS; TIN 116; TIN 122; TIN 124; TIN 132; TRANSITION AMPLITUDES; URANIUM 238
Citation Formats
Bonneau, L., Kawano, T., Watanabe, T., Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka 8190395, and Chiba, S.. Nucleon directsemidirect radiative capture with SkyrmeHartreeFockBCS bound states. United States: N. p., 2007.
Web. doi:10.1103/PHYSREVC.75.054618.
Bonneau, L., Kawano, T., Watanabe, T., Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka 8190395, & Chiba, S.. Nucleon directsemidirect radiative capture with SkyrmeHartreeFockBCS bound states. United States. doi:10.1103/PHYSREVC.75.054618.
Bonneau, L., Kawano, T., Watanabe, T., Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka 8190395, and Chiba, S.. Tue .
"Nucleon directsemidirect radiative capture with SkyrmeHartreeFockBCS bound states". United States.
doi:10.1103/PHYSREVC.75.054618.
@article{osti_20995304,
title = {Nucleon directsemidirect radiative capture with SkyrmeHartreeFockBCS bound states},
author = {Bonneau, L. and Kawano, T. and Watanabe, T. and Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, 744 Motooka, Nishiku, Fukuoka 8190395 and Chiba, S.},
abstractNote = {The nucleon directsemidirect (DSD) capture cross sections are obtained by calculating a transition amplitude to the HartreeFockBCS bound states. The radial matrix elements in the DSD amplitudes are calculated from the radial part of the singleparticle wave functions. For deformed nuclei the singleparticle states are expanded in the cylindrical harmonicoscillator basis and then projected on the spherical harmonicoscillator basis. The pairing correlations are treated in the BCS approach and the calculated spectroscopic factors are in fairly good agreement with experimental data in the even tin isotopes from {sup 116}Sn to {sup 124}Sn. The resulting DSD cross sections for the neutron capture by {sup 208}Pb and {sup 238}U are found to be in good agreement with the available experimental data. The calculations are also performed for the neutron capture on {sup 122}Sn and {sup 132}Sn isotopes that are important for the rprocess in astrophysics.},
doi = {10.1103/PHYSREVC.75.054618},
journal = {Physical Review. C, Nuclear Physics},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}

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