Cluster formation probability in the trans-tin and trans-lead nuclei

One single line of universal (UNIV) curve for α decay and cluster radioactivities is obtained by plotting the sum of the decimal logarithm of the half-life and cluster preformation probability versus the decimal logarithm of the penetrability of external barrier. This fission-like theory is compared to the universal decay law (UDL) derived using α-like R-matrix theory. The experimental data on heavy cluster decay in three groups of even-even, even-odd, and odd-even parent nuclei are reproduced with comparable accuracy by both types of universal curves, UNIV and UDL.

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“…Nevertheless, there are many recently published theoretical approaches on this topic, e.g., Refs. [13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Single universal curve for cluster radioactivities andαdecay

2011

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“…9,10 Many theoretical models, both alpha decay like 11 and fission like, [12][13][14] have been proposed to explain CR phenomenon. Half-life values for different modes of cluster decays in both trans-tin region [14][15][16][17][18][19][20][21][22][23][24][25][26][27] and trans-lead 12 region have been calculated by using both alpha-like and fission-like theoretical models. These model based values are available in plenty in literature.…”

Section: Introductionmentioning

confidence: 99%

Half-Lives of Cluster Decay of Neutron Rich Nuclei in Trans-Tin Region

Swamy

Umesh

2011

Int. J. Mod. Phys. E

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In this work, the logarithmic half-life [log 10 (T 1/2 )] values have been reported for the exotic decay of some neutron rich even-even parent nuclei (56 ≤ Z ≤ 64) accompanied by the emission of alpha-like and non-alpha-like clusters in the trans-tin region. These values were calculated by using the single line of universal curve (UNIV) for alpha and cluster radioactive decay as well as the universal decay law (UDL). The half-life values were also separately calculated by considering the interacting nuclear potential barrier as the sum of Coulomb and proximity potentials. The half-life values based on the three calculations mentioned above, were found to agree with one another within a few orders of magnitude. Possible conclusions are drawn based on the present study.

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“…Santhosh et al, [7,8] have calculated half-lives for experimentally observed cluster decay modes of several heavy nuclei in the trans-lead and trans-tin region by using Coulomb proximity potential model (CPPM) [9,10]. The present work is an extension of our earlier work [11] which presents a comparative study of heavy particle decay using different nuclear potentials.…”

Section: Introductionmentioning

confidence: 85%