Accurate treatment of coulomb contribution in nucleus-nuclues bremsstrahlung

Baye, Daniel Jean; Sauwens, Christian; Descouvemont, Pierre; Keller, S.

doi:10.1016/0375-9474(91)90581-p

Cited by 26 publications

(27 citation statements)

References 9 publications

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“…at the chosen l f in Eqs. (59)] equal zero for some values of the angle θ then the differential matrix elements in Eqs. (58) [in Eqs.…”

Section: E Role Of the Multipolar Components In The Angular Analysismentioning

confidence: 99%

“…Microscopic models, in which wave functions were obtained from single-configuration resonanting group calculations, can provide a powerful formalism for the study of many-nucleon interactions. However, in particular, we see that magnetic emission was not included in such models, which were applied to the description of bremsstrahlung emission during scattering of protons off α particles [57] and α particles off α particles and light nuclei [58,59].…”

Section: Introductionmentioning

confidence: 99%

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Model for bremsstrahlung emission accompanying interactions between protons and nuclei from low energies up to intermediate energies: Role of magnetic emission

Maydanyuk

2012

Phys. Rev. C

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A model of the bremsstrahlung emission which accompanies proton decay and collisions of protons off nuclei in the low-to intermediate-energy region has been developed. This model includes spin formalism, a potential approach for describing the interaction between protons and nuclei, and an emission that includes a component of the magnetic emission (defined on the basis of the Pauli equation). For the problem of bremsstrahlung during proton decay the role of magnetic emission is studied by using such a model. For the 146 Tm nucleus the following has been studied: (1) How much does the magnetic emission change the full bremsstrahlung spectrum? (2) At which angle is the magnetic emission the most intensive relative to the electric emission? (3) Is there some spatial region where the magnetic emission increases strongly relative to the electric emission? (4) How intensive is the magnetic emission in the tunneling region? (5) Which is the maximal probability? Which value does it equal to at the zero-energy limit of the emitted photons? It is demonstrated that the model is able to describe well enough experimental data of bremsstrahlung emission which accompanies collisions of protons off 9 C, 64 Cu, and 107 Ag nuclei at an incident energy of T lab = 72 MeV (at a photon energy up to 60 MeV) and off 9 Be, 12 C, and 208 Pb nuclei at an incident energy of T lab = 140 MeV (at a photon energy up to 120 MeV).

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“…at the chosen l f in Eqs. (59)] equal zero for some values of the angle θ then the differential matrix elements in Eqs. (58) [in Eqs.…”

Section: E Role Of the Multipolar Components In The Angular Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Model for bremsstrahlung emission accompanying interactions between protons and nuclei from low energies up to intermediate energies: Role of magnetic emission

Maydanyuk

2012

Phys. Rev. C

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“…(35), (36), and (37) have similar shapes of the logarithmic type. Such calculations are found to be in some agreement with experimental data [1] for p + 208 Pb at E p = 140 MeV.…”

Section: Discussionmentioning

confidence: 96%

“…We start our analysis from calculations of cross sections on the basis of the first matrix element p 1 given in Eq. (35). Results of such calculations at 140 MeV of the proton energy in comparison with experimental data [1] are presented in Fig.…”

Section: Discussionmentioning

confidence: 99%

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New approach to determine proton-nucleus interactions from experimental bremsstrahlung data

Maydanyuk

Zhang

2015

Phys. Rev. C

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A new approach is presented to determine the proton-nucleus interactions from the analysis of the accompanying photon bremsstrahlung. We study the scattering of p + 208 Pb at the proton incident energies of 140 and 145 MeV, and the scattering of p + 12 C, p + 58 Ni, p + 107 Ag and p + 197 Au at the proton incident energy of 190 MeV. The model determines contributions of the coherent emission (formed by an interaction between the scattering proton and nucleus as a whole without the internal many-nucleon structure), incoherent emission (formed by interactions between the scattering proton and nucleus with the internal many-nucleon structure), and transition between them in dependence on the photon energy. The radius-parameter of the proton-nucleus potential for these reactions is extracted from the experimental bremsstrahlung data analysis. We explain the hump-shaped plateau in the intermediate-and high-energy regions of the spectra by the essential presence of the incoherent emission, while at low energies the coherent emission predominates which produces the logarithmic shape spectrum. We provide our predictions (in absolute scale) for the angular distribution of the bremsstrahlung photons in order to test our model, results and analysis in further experiments.

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The Third Generation of Nuclear Physics with the Microscopic Cluster Model

Langanke

1994

Advances in the Physics of Particles and Nuclei

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Accurate treatment of coulomb contribution in nucleus-nuclues bremsstrahlung

Cited by 26 publications

References 9 publications

Model for bremsstrahlung emission accompanying interactions between protons and nuclei from low energies up to intermediate energies: Role of magnetic emission

Model for bremsstrahlung emission accompanying interactions between protons and nuclei from low energies up to intermediate energies: Role of magnetic emission

New approach to determine proton-nucleus interactions from experimental bremsstrahlung data

The Third Generation of Nuclear Physics with the Microscopic Cluster Model

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