Predictions on the modes of decay of even <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si4.gif" display="inline" overflow="scroll"><mml:mi>Z</mml:mi></mml:math> superheavy isotopes within the range <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si9805.gif" display="inline" overflow="scroll"><mml:mn>104</mml:mn><mml:mo>≤</mml:mo><mml:mi>Z</mml:mi><mml:mo>≤</mml:mo><mml:mn>136</mml:mn></mml:math>

Santhosh, K. P.; Nithya, C.

doi:10.1016/j.adt.2017.03.003

Cited by 50 publications

(32 citation statements)

References 91 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, they can be considered as candidates for 1n-halo nuclei. Similarly, in Figure 2, 3, and 4; we can see that 34 Ne, 36 Na and 40 P shows a 2n + core configuration corresponding to the minimum value of the driving potential. Even though the S(n) of 40 P is lower than its S(2n), it can be considered as a 2n-halo since it has a minimum at 2n +core configuration.…”

Section: Resultsmentioning

confidence: 53%

“…These are tabulated and given in table 1. On the basis of our calculation of S(n), the possible 1n-halo candidates in the region Z = 10 -20 are 29 Ne, 31 Ne, 36 Na, 37 Na, 35 Mg, 37 Mg, 46 P and 55 Ca. The isotopes of Z = 10 -20 nuclei showed a lower 2n-separation energy than 1n-separation energy only for 34 Ne and can be considered as a candidate for 2n-halo.…”

Section: Resultsmentioning

confidence: 99%

“…Even though the S(n) of 40 P is lower than its S(2n), it can be considered as a 2n-halo since it has a minimum at 2n +core configuration. Therefore, the 2-n halo candidates are 34 Ne, 36 Na and 40 P. From the plot of driving potential, in the case of 29 Ne, 31 Ne and 37 Mg, we can see that with the increase in the angular momentum quantum number (l ), the 1n + core configuration is shifted to 2n + core configuration This kind of changes are observed when the ground state spin and parity of the decays are not conserved [33]. The spin and parity of 24 Na , However, the halo nuclei prefer the lowest angular momentum state (l = 0) since large angular momentum will give rise to a centrifugal potential that would tend to confine the nucleons [7].…”

Section: Resultsmentioning

confidence: 99%

“…This is a well-established model and is extensively used by K.P. Santhosh et al for the last one decade [34][35][36]. The model can be used for accurate predictions of alpha decay chains [35,36] and heavy particle decays from heavy and superheavy elements [35].…”

Section: The Coulomb and Proximity Potential Modelmentioning

confidence: 99%

“…Santhosh et al for the last one decade [34][35][36]. The model can be used for accurate predictions of alpha decay chains [35,36] and heavy particle decays from heavy and superheavy elements [35]. The model has been modified for deformed nuclei by considering the quadrupole, octupole and hexadecapole deformations and is used to study the effect of deformation on the half-life of decay [37].…”

Section: The Coulomb and Proximity Potential Modelmentioning

confidence: 99%

See 4 more Smart Citations

Theoretical Study on the Formation of 1-neutron and 2-neutron Halo Nuclei via Decay of Elements in Super-Heavy Region

Biju¹,

Prathapan²,

Anjali³

2020

J. Nucl. Phy. Mat. Sci. Rad. A.

View full text Add to dashboard Cite

The possibility for the existence of 1-neutron and 2-neutron halo nuclei through the decay of even-even nuclei 270-316116, 272-318118 and 278-320120 in the super-heavy region is studied within the frame work of the Coulomb and Proximity Potential Model (CPPM). Halo structure in neutron rich nuclei with Z<=20 is identified by calculating the neutron separation energies and on the basis of potential energy considerations. The 1n + core configuration of proposed 1-neutron halo nuclei between z=10 and Z=20 is found shifted to 2n + core configuration in higher angular momentum states. The calculation of half-life of decay is performed by considering the proposed halo nuclei as spherical cluster and as deformed nuclei with a rms radius. Except for 15C, the half-life of decay is found decreased when the rms radius is considered. Only the 1-neutron halo nuclei 26F and 55Ca showed half-lives of decay which are less than the experimental limit. None of the proposed 2-neutron halo nuclei have shown a half-life of decay lower than the experimental limit. Also, the probability for the emission of neutron halo nuclei is found to be less in super-heavy region when compared with the clusters of same isotope family. Further, neutron shell closure at neutron numbers 150, 164 and 184 is identified form the plot of log10 T1/2 verses the neutron number of parents. The plots of Q-1/2 verses log10 T1/2 and -ln P verses log10 T1/2 for various halo nuclei emitted from the super-heavy elements are found to be linear showing that Geiger-Nuttall law is applicable to the emission of neutron halo also.

show abstract

Section: Resultsmentioning

confidence: 53%