Results 281 to 290 of about 13,104,853 (333)
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Resonance reactions and the nuclear shell model I
Annals of Physics, 1964Abstract H. Feshbach's unified theory of nuclear reactions has been applied to the calculation of elastic neutron scattering from a N15 target. The target nucleus is considered to be adequately described as a p 1 2 hole configuration relative to the O16 core.
Lemmer, R. H., Shakin, C. M.
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Nuclear Reactions (Optical Model. Deuteron Reactions)
1959In this lecture we shall consider nuclear reactions from an entirely different point of view. To eliminate the complications which arise because of the Coulomb field of the nucleus we shall consider only neutron reactions.
C. Landau, Ya. Smorodinsky
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1990
The preceding chapter outlined some of the elements of quantum scattering theory. Almost nothing was said about the ways in which the physics of the nucleus influence the parameters which enter the formal theory, although some general features of nuclear reactions were discussed briefly in Chapter 2. We now intend to describe various physical models in
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The preceding chapter outlined some of the elements of quantum scattering theory. Almost nothing was said about the ways in which the physics of the nucleus influence the parameters which enter the formal theory, although some general features of nuclear reactions were discussed briefly in Chapter 2. We now intend to describe various physical models in
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Modeling Compound Nuclear Reactions with EMPIRE
2020EMPIRE by Herman et al. (Nucl Data Sheets 108:2655, 2007) is a modular system of nuclear reaction codes, comprising various nuclear models, and designed for calculations over a broad range of energies and incident particles. A projectile can be a neutron, a proton, an ion, or a photon.
M. Herman +4 more
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Cascade-exciton model of nuclear reactions
Nuclear Physics A, 1983Abstract An approach combining essential features of the exciton and intranuclear cascade models is developed. The cascade-exciton model predictions for the energy spectra, angular distributions and double differential cross sections of nucleons and complex particles as well as for the excitation functions are analyzed at incident nucleon energies T
K.K. Gudima, S.G. Mashnik, V.D. Toneev
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Global Microscopic Models for Nuclear Reaction Calculations
AIP Conference Proceedings, 2005Important effort has been devoted in the last decades to measuring reaction cross sections. Despite such effort, many nuclear applications still require the use of theoretical predictions to estimate experimentally unknown cross sections. Most of the nuclear ingredients in the calculations of reaction cross sections need to be extrapolated in an energy
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A collective model for the nuclear photo-reactions
Il Nuovo Cimento, 1956For the nuclear photo-reaction in the giant resonance region, we considered a collective model which includes both the Goldhaber-Teller and Steinwedel-Jensen type of motion. We find a coupling of these two modes through the kinetic energy. This leads us to two resonance frequencies.
V. de Sabbata, A. Sugie
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A schematic model for the investigation of nuclear reactions
Nuclear Physics A, 1976Abstract An extension of the schematic model of Lipkin, Glick and Meshkov to include reaction modes with one particle in the continuum is introduced. The model set up is amenable to the investigation of various approximations necessary in realistic shell model in the continuum calculations.
H.T. Coelho +3 more
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Computer simulations of fragmentation in nuclear reactions: A semiclassical model
Physical Review C, 1987A semiclassical model is used to perform numerical simulations of the production of nuclear fragments in both proton- and heavy-ion-induced reactions. The Pauli principle is incorporated by means of a collision term, as it is in the Vlasov-Uehling-Uhlenbeck equation. The model goes beyond the Vlasov-Uehling-Uhlenbeck equation by propagating on an event-
, Beauvais, , Boal, , Wong
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Unitary Models of Nuclear Resonance Reactions
Physical Review, 1967While most reaction theories are formally flux conserving, the kinds of models and approximations used to specify the $S$ matrix for resonance reaction processes are often of doubtful unitarity, particularly in the overlapping resonance region. To investigate the consequences of unitarity in this domain, several classes of simple analytically specified
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