Isotopic yield and half-lives for the spontaneous fission of 280Ds and 282Cn, superheavy nuclei

Pahlavani, M. R.; Joharifard, M.

doi:10.1140/epja/i2018-12602-7

Cited by 10 publications

(4 citation statements)

References 69 publications

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“…Researchers have usually calculated the spontaneous fission half-lives [46][47][48] and Relative mass yields [21,23,49] for even-even elements with WKB model. In one of the modified statistical scission-point mode [18], the mass yield values are significantly different compared to the experimental data (more than 0.03).…”

Section: Resultsmentioning

confidence: 99%

Mass yield of spontaneous fission of ²³⁸ U within the systematic statistical scission-point model

Kaldiani

2020

Phys. Scr.

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The spontaneous fission fragments mass yield of 238U is calculated with two models: WKB approximation model and statistical scission-point model. The results are compared with experimental data. This shows that the statistical scission-point model results are closer to the experimental data of the spontaneous fission fragments mass distributions than the WKB model. Also, experimental values are obtained by changing the deformation parameter for light fragments. The influence of temperature, deformation parameters, and pairing energy on the spontaneous fission fragments mass yield has been investigated within the statistical scission-point model. Adding the pairing correction energy to the total energy of the fission system adds some oscillations in theoretical results of fission fragments mass yields, also the inclusion of fission fragments temperature regardless of the pairing energy causes some theoretical results to be overestimated compared to the experimental data. It is seen that adding the pairing correction energy with the fragments temperature together leads to acceptable results compared to the experimental values. Therefore, the theoretical results of the systematic modified statistical scission-point model are in good agreement with the experimental values. This shows that although the statistical model is commonly used for the even–even isotopes, all isotopes can be investigated using the modified statistical model.

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Section: Resultsmentioning

confidence: 99%

Mass yield of spontaneous fission of ²³⁸ U within the systematic statistical scission-point model

Kaldiani

2020

Phys. Scr.

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“…More information about calculation of penetrability by using the two turning points are represented in Refs. [44], [45], [61] and [62]. In fig.…”

Section: Comparison Between True and Tin-accompanied Ternary Fission mentioning

confidence: 99%

“…In our first publication [61], we studied the cold ternary fission of the 250 Cm by using three-cluster model in the equatorial geometry and considering light charged particles as the fixed third fragment. In our second paper [62], a relatively heavy nucleus ( 34 Mg) is considered as the fixed third fragment to compare the results with light third fragments in ternary fission of 242 Pu. The obtained results revealed that ternary fission of 242 Pu accompanied by 34 Mg, occurs with very low probability in the equatorial configuration.…”

Section: Introductionmentioning

confidence: 99%

Tin-accompanied and true ternary fission of ²⁴²Pu

2019

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True ternary fission and Tin-accompanied ternary fission of 242 Pu are studied by using 'Three Cluster Model '. True ternary fission is considered as formation of heavy fragments in the region 28 ≤ Z 1 , Z 2 , Z 3 ≤ 38, with comparable masses. The possible fission channels are predicted from potential-energy calculations. Interaction potentials, Q-values and relative yields for all possible fragmentations in equatorial and collinear configurations are calculated and compared to each other. It is found out that ternary fission with formation of a double magic nucleus like 132 Sn is more probable than the other fragmentations. Also the kinetic energies of the fragments for the group Z 1 = 32, Z 2 = 32 and Z 3 = 30 are calculated for all combinations in the collinear geometry, as a sequential decay.

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“…Introduction. -The α-decay of SuperHeavy Elements (SHE) has aroused great interest since it constitutes the main decay mechanism of these nuclei [1][2][3][4][5][6], although the cluster radioactivity process could be also proeminent for some superheavy nuclei [7,8]. To date the heaviest element known is named Oganesson with chemical symbol Og, and atomic number Z = 118 [9].…”

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confidence: 99%

Bayesian Neural Network improvements to nuclear mass formulae and predictions in the SuperHeavy Elements region

Rodríguez¹,

Vargas²,

Gonçalves³

et al. 2019

EPL

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A systematic study based on the Bayesian Neural Network (BNN) statistical approach is introduced to improve the predictive power of current nuclear mass formulae when applied to nuclides not yet experimentally detected. In a previous work by the present authors, the methodology was introduced considering only the Duflo-Zuker mass model (Duflo J. and Zuker A., Phys. Rev. C, 52 (1995) R23) to explore the S uperH eavy E lements (SHE) region, with focus on the α-decay process. Due to the discrepancy among different mass formulae we decided to extend in the present calculation the application of the Bayesian Neural Network methodology to other mass formula models and to discussing their implications on predictions of SHE α-decay half-lives. The -value prediction using a set of ten different mass models has been greatly improved for all models when compared to the available experimental data. In addition, we have used the improved -value to determine the SHE α-decay half-lives with a well-succeeded model in the literature, currently employed for different hadronic nuclear decay modes of heavy nuclei, the E ffective L iquid D rop M odel (ELDM). Possible SHE candidates recently investigated are explicitly calculated (specially the 298, 299,300120 isotopes, and results present a promising via of research for these nuclei through α-decay process.

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Isotopic yield and half-lives for the spontaneous fission of 280Ds and 282Cn, superheavy nuclei

Cited by 10 publications

References 69 publications

Mass yield of spontaneous fission of ²³⁸ U within the systematic statistical scission-point model

Mass yield of spontaneous fission of ²³⁸ U within the systematic statistical scission-point model

Tin-accompanied and true ternary fission of ²⁴²Pu

Bayesian Neural Network improvements to nuclear mass formulae and predictions in the SuperHeavy Elements region

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Isotopic yield and half-lives for the spontaneous fission of 280Ds and 282Cn, superheavy nuclei

Cited by 10 publications

References 69 publications

Mass yield of spontaneous fission of 238 U within the systematic statistical scission-point model

Mass yield of spontaneous fission of 238 U within the systematic statistical scission-point model

Tin-accompanied and true ternary fission of 242Pu

Bayesian Neural Network improvements to nuclear mass formulae and predictions in the SuperHeavy Elements region

Contact Info

Product

Resources

About

Mass yield of spontaneous fission of ²³⁸ U within the systematic statistical scission-point model

Mass yield of spontaneous fission of ²³⁸ U within the systematic statistical scission-point model

Tin-accompanied and true ternary fission of ²⁴²Pu