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Ignatyuk, A.V.; Weil, J.L.; Raman, S.; Kahane, S.

doi:10.1103/physrevc.47.1504

Cited by 249 publications

(139 citation statements)

References 19 publications

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“…8 the results for the 79 Se(n,γ ) cross sections calculated by using TALYS with various models for the input γ SF are shown. The uncertainty on the cross section due to the choice of the nuclear level density (NLD) model has been estimated by using various NLD models [65][66][67][68][69] and is shown as a blue band. The enhancement of γ SF using EPACS results in about a 55%-98% larger neutron-capture cross section between 1 keV and 1 MeV compared with the TLO model.…”

Section: Discussionmentioning

confidence: 99%

Dipole strength inSe80forsprocess and nuclear transmutation ofSe79

et al. 2016

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The dipole strength distribution of 80 Se was studied in a photon-scattering experiment by using bremsstrahlung produced with an electron beam of energy 11.5 MeV at the linear accelerator ELBE. We identified 180 γ transitions up to an energy of 9.6 MeV, and analyzed the strength in the quasicontinuum of the spectrum. Simulations of statistical γ -ray cascades were performed to estimate intensities of inelastic transitions and to correct the intensities of the ground-state transitions for their branching ratios. The photoabsorption cross section below the neutron-separation energy derived in this way was combined with the photoabsorption cross section obtained from an earlier (γ,n) experiment and used as an input for the calculation of 79 Se(n,γ ) reaction rates on the basis of the statistical reaction model.

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Section: Discussionmentioning

confidence: 99%

Dipole strength inSe80forsprocess and nuclear transmutation ofSe79

et al. 2016

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“…Nuclear level densities are derived both from phenomenological expressions and microscopic models. Approaches like the Fermi gas model [28], the constant temperature model [29], the back-shifted Fermi gas model [30], and the generalized superfluid model [31,32] constitute the phenomenological expressions. For microscopic calculations, Hartree-Fock [33], Skyrme-Hartree-FockBogolyubov framework [34], and temperature-dependent Hartree-Fock-Bogolyubov methods [35] are used.…”

Section: Discussionmentioning

confidence: 99%

Proton capture cross section ofGe72and astrophysical implications

et al. 2015

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University of Notre Dame using a 1.8 to 3.6 MeV proton beam. In order to test the predictive power of different theoretical calculations in the region, experimental values are compared to the results given by the nuclear reaction code TALYS 1.6. The theoretical uncertainties in the cross section arising from different combinations of nuclear level densities, γ-ray strength functions and optical model potentials were reduced to 10 − 18% by the experimental data. The recommended reaction rates from the standard astrophysical libraries, BRUSLIB and REACLIB, are found to be in good agreement with the experimental results.

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“…The dependence of the quasi-particle (qp) state density on the excitation energy E x is assumed to be exponential [7,8] in the pairing dominated phase below a critical temperature t c [10][11][12]. In contrast to previous work [7,11] we fix the transition point on the basis of Fermi gas theory with the energy corrected by a back shift [10].…”

Section: Dipole Strength Functionsmentioning

confidence: 99%

“…In contrast to previous work [7,11] we fix the transition point on the basis of Fermi gas theory with the energy corrected by a back shift [10]. For it the sum of the condensation energy [10][11][12][13] and a shell correction is used. The latter is taken from a comparison of nuclear masses to liquid drop values, and the rather strong effect of it is assumed to be negligible in view of the near identity of the one used by us [15] as compared to a previous fit [16].…”

Section: Dipole Strength Functionsmentioning

confidence: 99%