A Systematic Study on 1neutron and 2neutron Halo Nuclei Using Coulomb and Nuclear Proximity Potential

The halo-structure of a nucleus is analyzed on the basis of potential energy consideration and separation energy calculations and thereby characterized a nucleus as a halo nucleus. The separation energy analysis showed that ¹¹Be, ¹⁴B, ^{15, 17, 19}C, ²²N, ²³O, ^{24, 26}F, and ²⁹Ne are 1n-halo nuclei since the 1n separation energy S(n) is the lowest and ^{6, 8}He, ¹¹Li, ¹⁴Be, ¹⁷B, ²²C, and ²⁹F are 2n-halo candidates as 2n separation energy S(2n) is the lowest. The potential energy calculations are consistent with the predictions based on separation energy calculations except for ¹²Be, ¹⁹B, and ²⁷F which can be considered as 2n-halo candidates by potential energy consideration. Also, a discrepancy is noticed in the case of the proposed 2n-halo ⁸He and ¹⁷B nuclei. Further, the possibility of emitting halo nucleus via heavy particle decay of heavy nuclei, within the range 82?≤?Z?≤?102, has been studied using the Coulomb and proximity potential model (CPPM). It is observed that the probability of emission of a halo nucleus is lower than that of a normal cluster Nevertheless, there is a finite chance of emission of a halo nucleus in the decay of a heavy nucleus.