The Physics Society of Iran Iranian Journal of Physics Research 1682-6957 19 2 2019 11 26 Calculation of the rotational bands for the 20Ne isotope Calculation of the rotational bands for the 20Ne isotope 359 364 1445 10.29252/ijpr.19.2.359 FA M R Shojaei N Roshanbakht Journal Article 2019 11 26 The phenomenon of clustering in light nuclei is one of the interesting topics while its study is difficult. In this article, a simple model (the two-particle model which includes a core and a cluster) is presented for the investigation of the positive and the negative parity of rotational bands of 20Ne isotope. The Deng-Fan and the Hellman potentials are considered as the core and the cluster potential. Our results show that the energy levels of the rotational band with positive parities, employing the mentioned potentials, are in a good agreement with those of experimental data. But, in the negative parity rotational band, using the Deng-Fan potential, the corresponding results agree with the experimental data better than those of Hellman potential. The phenomenon of clustering in light nuclei is one of the interesting topics while its study is difficult. In this article, a simple model (the two-particle model which includes a core and a cluster) is presented for the investigation of the positive and the negative parity of rotational bands of 20Ne isotope. The Deng-Fan and the Hellman potentials are considered as the core and the cluster potential. Our results show that the energy levels of the rotational band with positive parities, employing the mentioned potentials, are in a good agreement with those of experimental data. But, in the negative parity rotational band, using the Deng-Fan potential, the corresponding results agree with the experimental data better than those of Hellman potential. https://ijpr.iut.ac.ir/article_1445_b265ce60fe4c5384e622b09eb829b8df.pdf