• MOHAMMAD REZA SHOJAE

      Articles written in Pramana – Journal of Physics

    • Calculation of energy spectrum of $^{12}$C isotope with modified Yukawa potential by cluster models

      MOHAMMAD REZA SHOJAE NAFISEH ROSHAN BAKHT

      More Details Abstract Fulltext PDF

      In this paper, we have calculated the energy spectrum of 12C isotope in two-cluster models, $3\alpha$ cluster model and $^8$Be + $\alpha$ cluster model. We use the modified Yukawa potential for interaction between theclusters and solve the Schrödinger equation using Nikiforov–Uvarov method to calculate the energy spectrum. Then, we increase the accuracy by adding spin-orbit coupling and tensor force and solve them by perturbationtheory in both models. Finally, the calculated results for both models are compared with each other and with the experimental data. The results show that the isotope $^{12}$C should be considered as a three-$\alpha$ cluster and themodified Yukawa potential is adaptable for cluster interactions.

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