Sh. M. Sewailem | Searcharxiv

arXiv2021

Study of the ground state energies of some nuclei using hybrid model

The quark-quark QQ interaction as a perturbed term to the nucleon-nucleon interaction NN without any coupling between them is studied in a hybrid model. This model is used to calculate the ground-state energies of 2H1 and 4He2 nuclei. In a semi-relativistic framework, this model is encouraged for light nuclei and the instanton induced interaction by using the QQ potential and the NN interaction for a small scale around the hadron boundaries. This hybrid model depends on two theories, the one-boson exchange potential OBEP and the Cornell-dressed potential CDP for QQ. A small effect of quark-quark interaction is obtained on the values of the ground state energies, around 6.7 for 2H1 and 1.2 for 4He2 by using the considered hybrid model.

hep-ph↗

arXiv2013

Microscopic Description of K^+ Scattering on 4^He, 16^O and 40^Ca Nuclei using Meson Exchange Theory

We have calculated the total cross section for k^+-4^He, 16^O, 40^Ca, intes at incident momenta of the kaon P_lab<1GeV . We derived the K^+-nucleon optical potential according to the exchange of 3- mesons (segma,roh,omega) and also for 4- (segma,roh,omega, segma_0) exchanged between the reactants. We showed both of the radial behavior of the real and the imaginary parts of the derived potential. Comparisons between the available experimental data, other theoretical work and the calculated total cross sections for the three studied nuclei which have shown a reasonable agreement. The extended four mesons exchanged optical potential gave better close results to the experimental data. Further, ratios of the total cross sections of the studied nuclei with respect to the total cross section with the deuteron nucleus for the two applied optical potentials were given. In addition, the ratio of the theoretical result of the total cross section for the interaction of the K^+ meson with the deuteron was compared with the corresponding experimental one to evaluate our theoretical results in a more clear manner.

nucl-th↗