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NSR database version of April 25, 2024.

Search: Author = H.P.Loens

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2012ER01      Phys.Rev. C 85, 025802 (2012)

J.Erler, K.Langanke, H.P.Loens, G.Martinez-Pinedo, P.-G.Reinhard

Fission properties for r-process nuclei

NUCLEAR STRUCTURE ^{250,252,254,256,258}No, ^{254,256,258,260}Rf, ^{258,260,262,264,266}Sg, ^264,266Hs, ²⁸⁴Cn, ²⁸⁸Fl; calculated half-lives and fission barriers with three different Skyrme parameterizations. Comparison with experimental data. Z=82-120, N=120-260; calculated fission barriers of even-even nuclei for four different Skyrme parameterizations and four theoretical mass models HFB-14, ETFSI, FRDM, and TF. Z=100-120, N=120-260; calculated fission half-lives for even-even nuclei using the Skyrme parameterizations, minimal lifetime plots for competing α decay and spontaneous fission. Comparison with experimental data. Z=84-120, N=120-260; calculated α-decay half-lives using the Q(α) values and the semi empirical Viola-Seaborg formula. Z=96-108, N=180-206; calculated difference of ground state energies and fission barriers between reflection symmetric and asymmetric configurations with the Skyrme parameterization, comparison of symmetric and asymmetric fission barriers and half-lives. ^286,294Rf; calculated PES for symmetric and asymmetric shapes with the Skyrme parameterization.

doi: 10.1103/PhysRevC.85.025802
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2012LO04      Eur.Phys.J. A 48, 34 (2012)

H.P.Loens, K.Langanke, G.Martinez-Pinedo, K.Sieja

M1 strength functions from large-scale shell-model calculations and their effect on astrophysical neutron capture cross-sections

NUCLEAR STRUCTURE ^{54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70}Fe; calculated M1 transition strength distribution for ground state and low-lying states using shell model with ^40,48Ca core and KB3Gmod interaction. Compared with single-particle calculation and Kopecky formula.

NUCLEAR REACTIONS ^{53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69}Fe(n, γ), E=0.001-1 MeV; calculated M1 σ. Compared with single-particle calculation and Kopecky formula.

doi: 10.1140/epja/i2012-12034-5
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2011HU03      Eur.Phys.J. A 47, 10 (2011)

L.Huther, H.P.Loens, G.Martinez-Pinedo, K.Langanke

s-process stellar enhancement factors obtained within the statistical model with parity-dependent level densities

NUCLEAR REACTIONS ²⁰⁴Pb(n, γ), E=0.086 eV-860 keV; calculated σ, reaction rates. A=24-210(n, γ), E=8, 30, 90 keV; calculated s-process reaction rates, stellar enhancement factors. Hilaire-Goriely and BSFG densities with parity.

doi: 10.1140/epja/i2011-11010-y
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2009LI13      Nucl.Phys. A823, 26 (2009)

E.Litvinova, H.P.Loens, K.Langanke, G.Martinez-Pinedo, T.Rauscher, P.Ring, F.-K.Thielemann, V.Tselyaev

Low-lying dipole response in the relativistic quasiparticle time blocking approximation and its influence on neutron capture cross sections

NUCLEAR STRUCTURE ^{106,116,132,140}Sn; calculated E1 strength function using microscopic quasiparticle time blocking approximation. Comparison with other models.

NUCLEAR REACTIONS ^{105,115,131,139}Sn(n, γ), E=0.001-20 MeV; calculated σ. ^{67,69,71,73,75,77}Ni, ^{105,109,113,115,119,123,129,131,133,135,137,139}Sn(n, γ), E≈80-100 keV; calculated stellar capture rate ratio between various models.

doi: 10.1016/j.nuclphysa.2009.03.009
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