Local and global nucleon optical models from 1 keV to 200 MeV

Koning, A. J.; Delaroche, J. P.

doi:10.1016/s0375-9474(02)01321-0

Cited by 1,914 publications

(2,114 citation statements)

References 200 publications

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“…In this study, we adopt the KoningDelaroche global optical potential 28) for neutron and proton, the -particle optical potential of Avrigeanu, Hodgson, and Avrigeanu, 29) the generalized Lorentzian form for the -ray strength function of Kopecky and Uhl,27) and the composite level density formulae of Gilbert and Cameron 30) with an updated parameterization. 31) The discrete level data are taken from RIPL-3.…”

Section: Hauser-feshbach Model Calculationmentioning

confidence: 99%

Monte Carlo Simulation for Particle and γ-Ray Emissions in Statistical Hauser-Feshbach Model

Kawano

Talou

Chadwick

et al. 2010

Journal of Nuclear Science and Technology

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Monte Carlo simulations for particle and -ray emissions from a compound nucleus based on the Hauser-Feshbach statistical theory with pre-equilibrium emission are performed. The simulation yields reliable nuclear-reaction-wise energy spectra, or so-called exclusive spectra, for emitted neutrons and -rays, which are required in particle transport calculations for nuclear applications. The Monte Carlo method is applied to neutron-induced nuclear reactions on 56 Fe, and the results are compared with a traditional deterministic method. The neutron and -ray emission correlation is examined by gating on an 847 keV -ray that is produced by an inelastic scattering process. The partial -ray energy spectra for different -ray multiplicities are inferred using this Monte Carlo method. In addition, we investigate a correlation between two neutrons in the (n,2n) reaction.

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Section: Hauser-feshbach Model Calculationmentioning

confidence: 99%

Monte Carlo Simulation for Particle and γ-Ray Emissions in Statistical Hauser-Feshbach Model

Kawano

Talou

Chadwick

et al. 2010

Journal of Nuclear Science and Technology

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“…One of the first observations was the β decay of neutron-rich Mn isotopes, which revealed a sharp decrease of the 2 + 1 energies in 64,66,68 Fe (Z = 26) [5,6] and later in the neutron-rich Cr isotopes (Z = 24) [7]. The discovery of a μs isomer in 67 Fe proved to be compatible with enhanced deformation in this nucleus [8].…”

Section: Introductionmentioning

confidence: 99%

“…In this paper we present the results of a study of 67 Ni produced in a 66 Ni(d,p)-reaction (Q value, 3.580 MeV [30,37]), favoring transfer with low values. The obtained experimental angular distributions are compared with distorted-wave Born approximation (DWBA) calculations, allowing spin and parity assignments and relative spectroscopic factors to be reported.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of theNi66(d,p) Ni67
Diriken¹,
Raabe²,
Eberth³
et al. 2015
Phys. Rev. C
9
1
5
0
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The quasi-SU(3) sequence of the positive parity νg 9/2 ,d 5/2 ,s 1/2 orbitals above the N = 40 shell gap are assumed to induce strong quadrupole collectivity in the neutron-rich Fe (Z = 26) and Cr (Z = 24) isotopes below the nickel region. In this paper the position and strength of these single-particle orbitals are characterized in the neighborhood of 68 Ni (Z = 28, N = 40) through the 66 Ni(d,p) 67 Ni one-neutron transfer reaction at 2.95 MeV/nucleon in inverse kinematics, performed at the REX-ISOLDE facility in CERN. A combination of the Miniball γ -array and T-REX particle-detection setup was used and a delayed coincidence technique was employed to investigate the 13.3-μs isomer at 1007 keV in 67 Ni. Excited states up to an excitation energy of 5.8 MeV have been populated. Feeding of the νg 9/2 (1007 keV) and νd 5/2 (2207 keV and 3277 keV) positive-parity neutron states and negative parity (νpf ) states have been observed at low excitation energy. The extracted relative spectroscopic factors, based on a distorted-wave Born approximation analysis, show that the νd 5/2 single-particle strength is mostly split over these two excited states. The results are also compared to the distribution of the proton single-particle strength in the 90 Zr region (Z = 40,N = 50).

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“…Consequently, we will use the Koning-Delaroche potential [10] to generate the distorted waves. For the same reasons, using Melbourne g-matrix for the effective interaction in the transition amplitudes might not be appropriate.…”

Section: One-step Direct Preequilibrium Emission From Spherical Targetsmentioning

confidence: 99%

Microscopic models for direct inelastic scattering and direct preequilibrium emission: nucleon induced reactions

Dupuis

Bauge

Bonneau

et al. 2010

EPJ Web of Conferences

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Abstract.We have developed microscopic models for nucleon induced inelastic scattering and one-step direct preequilibrium emission. These models are based on reliable effective in-medium two-body interactions and a microscopic description of the ground and excited states of target nuclei. No arbitrary renormalization process enters our analyzes and the predictions are directly compared to experimental data. The nuclear structure information are obtained in the Random Phase Approximation (RPA) framework with the Gogny force, which provides accurate descriptions of spherical nuclei without pairing. For medium energy (50-200 MeV) proton induced reactions, this approach gives very good predictions for direct inelastic scattering and for the first-step in direct preequilibrium emission. The one-step preequilibrium model has also been extended to fast neutron scattering (10-20 MeV) for the 90 Zr target described with RPA theory, and for axially deformed nuclei with a simpler description of the excited states (i.e. particle-hole excitations). Predictions of the reaction model reproduce well experimental data for 90 Zr. For deformed targets ( 232 Th and 238 U), our calculations underestimate the data at high emission energy. The cross section missing for both actinides may stem from the excitation of vibrational states with excitation energies lower than 5 MeV which are not described with incoherent particle-hole excitations. This defect might be cured if the target spectra are described within the Quasi-particle-RPA (QRPA) theory recently implemented with the Gogny force.

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Local and global nucleon optical models from 1 keV to 200 MeV

Cited by 1,914 publications

References 200 publications

Monte Carlo Simulation for Particle and γ-Ray Emissions in Statistical Hauser-Feshbach Model

Monte Carlo Simulation for Particle and γ-Ray Emissions in Statistical Hauser-Feshbach Model

Experimental study of theNi66(d,p) Ni67
Diriken¹,
Raabe²,
Eberth³
et al. 2015
Phys. Rev. C
9
1
5
0
View full text Add to dashboard Cite

Microscopic models for direct inelastic scattering and direct preequilibrium emission: nucleon induced reactions

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Local and global nucleon optical models from 1 keV to 200 MeV

Cited by 1,914 publications

References 200 publications

Monte Carlo Simulation for Particle and γ-Ray Emissions in Statistical Hauser-Feshbach Model

Monte Carlo Simulation for Particle and γ-Ray Emissions in Statistical Hauser-Feshbach Model

Experimental study of theNi66(d,p) Ni67Diriken1, Raabe2, Eberth3 et al. 2015Phys. Rev. C9150View full textAdd to dashboardCite

Microscopic models for direct inelastic scattering and direct preequilibrium emission: nucleon induced reactions

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Resources

About

Experimental study of theNi66(d,p) Ni67
Diriken¹,
Raabe²,
Eberth³
et al. 2015
Phys. Rev. C
9
1
5
0
View full text Add to dashboard Cite