Decay of 
                
                  
                
                $$Z=82{-}102$$
                
                  
                    
                      Z
                      =
                      82
                      -
                      102
                    
                  
                
               heavy nuclei via emission of one-proton and two-proton halo nuclei

Santhosh, K. P.; Sukumaran, Indu

doi:10.1007/s12043-018-1672-4

Cited by 10 publications

(4 citation statements)

References 77 publications

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“…Santhosh et al and is well established in predicting the barrier penetrability and half-life of decay of light and heavy clusters in heavy and super-heavy region [44][45][46][47][48]. Also, the CPPM is used for predicting the decay characteristics of proton halo nuclei [49] and neutron halo nuclei [50] in heavy and superheavy region. For a halo nucleus, the separation energy of last one or two nucleons is less than 1MeV.…”

Section: Resultsmentioning

confidence: 99%

“…This small unit of angular momentum will be making considerable contributions to the life time of the emission of light particles, like protons. Its contribution to half-life of decay of heavy cluster is very small and the angular momentum effects can be neglected [49]. Therefore, in the present study, the calculations are performed assuming zero angular momentum transfers.…”

Section: Resultsmentioning

confidence: 99%

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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.

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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.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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.

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“…Research on proton emission may have important implications for facilitating the extant nuclear theories and models, obtaining spectroscopic information, and determining nuclear deformation, among other purposes [10][11][12][13][14][15][16]. Therefore, numerous attempts have been made to study this phenomenon in theory [17][18][19][20][21][22][23][24][25].…”

Section: Q Pmentioning

confidence: 99%

Theoretical calculations of proton emission half-lives based on a deformed Gamow-like model*

Zhang 张,

Hu 胡,

Qi 亓

et al. 2024

Chinese Phys. C

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In the present study, proton emission half-lives have been investigated for the deformed proton emitters of proton number range $53\leq Z \leq 83$ within the deformed Gamow-like model, where the deformation effect has been included in the Coulomb potential. The calculated results can reproduce the experimental half-lives successfully within a factor of 3.45. For comparison, we also perform calculations with other different models, including the universal decay law for proton emission and the new Geiger-Nuttall law. Furthermore, the relevance of the half-lives to the angular momentum $l$ for $^{117}$La, $^{121}$Pr, $^{135}$Tb and $^{141}$Ho has been analysed as well as corresponding possible reference values of $l$ has been put forward: $l=$3, 3, 4, 4.

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“…Very recently, in 2019, A.A Ibraheem et al [46] studied the elastic scattering of 1p halo nucleus 17 F on different mass targets at different energies using semi macroscopic potentials. Another study on halo nuclei was done by K.P Santhosh et al [47] in 2019. They analyzed the structure of a halo nucleus on the basis of potential energy considerations and separation energy calculations.…”

Section: Introductionmentioning

confidence: 99%

A Systematic Study on the Existence of 7-9B, 16-19Ne, 8-11C, 23-30P and 26-32S Nuclei via Cluster Decay in the Super Heavy Region

Anjali¹,

Prathapan²,

Biju³

et al. 2019

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

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Based on the Coulomb and Proximity Potential Model, we have studied the decay probabilities of various exotic nuclei from even-even nuclei in the super heavy region. The half-lives and barrier penetrability for the decay of exotic nuclei such as 7-9 B, [16][17][18][19][8][9][10][11][23][24][25][26][27][28][29][30] S from the isotopes 116, 274-334 118 and 288-334 120 are determined by considering them as spherical as well as deformed nuclei. The effect of ground state quadrupole (β 2 ), Octupole (β 3 ) and hexadecapole (β 4 ) deformation of parent, daughter and cluster nuclei on half-lives and barrier penetrability were studied. Calculations have done for the spherical nuclei and deformed nuclei in order to present the effects of the deformations on half-lives. It is found that height and shape of the barrier reduces by the inclusion of deformation and hence half-life for the emission of different clusters decreases and barrier penetrability increases. Changes in the half-lives with and without the inclusion of deformation effects are compared in the graph of half-life and barrier penetrability against neutron number of parents. It is evident from the computed half lives that many of the exotic nuclei emissions are probable. Moreover shell structure effects on the half-lives of decay are evident from these plots. Peak in the plot of half-life and dip in the plot of barrier penetrability against neutron number of parent show shell closure at or near to N=184, N=200 and N=212.

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Decay of $$Z=82{-}102$$ Z = 82 - 102 heavy nuclei via emission of one-proton and two-proton halo nuclei

Cited by 10 publications

References 77 publications

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

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

Theoretical calculations of proton emission half-lives based on a deformed Gamow-like model*

A Systematic Study on the Existence of 7-9B, 16-19Ne, 8-11C, 23-30P and 26-32S Nuclei via Cluster Decay in the Super Heavy Region

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