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Article
Nonextensive and superstatistical generalizations of random-matrix theory
Random matrix theory (RMT) is based on two assumptions: (1) matrix-element independence, and (2) base invariance. Most of the proposed generalizations keep the first assumption and violate the second. Recently...
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Article
Discrete structures in fusion-barrier distributions for vibrational nuclei
We obtain a closed-form expression for the distribution of fusion barriers for vibrational nuclei using a generalization of Dasso, Landowne, and Winther's model, which represents the nuclear surface vibrations...
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Article
Mass yield in high-energy proton-uranium collisions from a complete, microcanonical statistical decay
The mass-yield of fragments produced in the statistical decay of238U* is compared to the yield from high energy p-U collisions. The distributions of the initial excitation energy are calculated using a Glauber ap...
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Article
A correction to6Li-Watanabe potential
Using the adiabatic approximation, an analytic expression for the correction to6Li Watanabe, potential is obtained. In addition, we have corrected this potential through a proper choice, of the energy at which th...
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Article
The Watanabe model for6Li-nucleus optical potential
Optical potentials for the scattering of6Li projectiles are calculated using the Watanabe model and an α+d cluster model wave function for6Li. Reasonable fits to the elastic differential cross section and vector ...
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Article
Influence of angular momentum dependence of charge transfer in deeply inelastic collisions on fragment kinetic energies
The fragment kinetic energies in deeply inelastic collisions are calculated using a classical model and assuming that the reaction proceeds through the formation of a transient sticking two-nucleus system. The...
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Article
Phenomenological approach to deeply inelastic collisions
A phenomenological approach to deeply inelastic collisions between heavy ions is suggested. The average reaction amplitude is parametrized in a simple form which emphasizes the strong localization of this proc...
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Article
Shape deformation and viscosity in deeply-inelastic heavy-ion collisions
Time scales and energy losses involved in tangential and radial friction as well as in viscuous and non-viscuous shape deformations are estimated. It is suggested that nuclear deformations are important only f...
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Article
Single pole dominance in α-elastic and inelastic scattering from calcium isotopes
The presence of a “zero-pole” in nuclear diagonalS-matrix was found to be dominant in both elastic and inelastic scattering angular distributions of α-particles (E=24 and 29 MeV) on Ca40,42,44,48 nuclei. The inel...
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Article
The mass number dependence of the diffraction model parameters
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Article
Multiple-scattering effects in quasi-free scattering
The Glauber multiple-scattering theory is applied to the study of quasi-free scattering of high-energy protons by nuclei. The multiple scattering of the knocked-out nucleon is not considered. The differential ...
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Article
Absorption cross-sections of antideuterons on nuclei
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Article
An impact parameter representation for the off-energy-shell scattering amplitude
The unitarized Born approximation for the scattering amplitude, suggested previously, is considered in the short wavelength limit. It is found that its on-energy-shell component is equivalent to the well-known...
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Article
The use of the eikonal approximation in the optical-model calculation
Numerical calculations show that the eikonal approximation reproduces well the optical-model phase shifts for alpha-particle scattering by medium nuclei. The results are not as good for the differential cross-...
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Article
Diffraction-model analysis of deuteron and3He scattering
Diffraction-model analysis are reported for the elastic scattering of deuterons and3He particles from different nuclei. Inopin-Ericson theory is used, which satisfactorily approximates the exact scattering amplit...
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Article
On the parametrization of pion nucleon scattering amplitude at energies less than 2 GeV
We parametrize the pion nucleon elastic scattering amplitude as a function of the momentum transfer for cos θcm between 1 and 0.5 and for pion laboratory energies less than 2 GeV. We discuss the variation of the ...
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Article
On the unitarization of the Born approximation
A new approximation for the elastic scattering transition matrix is suggested. This approximation satisfies the unitarity condition. A modified Born series is introduced which has this unitarized Born approxim...
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Article
A note on the three-body treatment for re-arrangement collisions
A successive procedure based on Faddeev’s three-body formulation is presented for calculating the transition amplitude for re-arrangement collisions.
