Isotopic yield and half-life of spontaneous fission for 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Cn</mml:mi><mml:mprescripts /><mml:none /><mml:mn>284</mml:mn></mml:mmultiscripts></mml:math>
 and 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Fl</mml:mi><mml:mprescripts /><mml:none /><mml:mn>284</mml:mn></mml:mmultiscripts></mml:math>
 superheavy isobars using direct calculation and s

Pahlavani, M. R.; Joharifard, M.

doi:10.1103/physrevc.99.044601

Cited by 13 publications

(6 citation statements)

References 65 publications

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“…The inner and outer turning points s 1 and s 2 are the intersections of the Q-value and interacting potential barrier. We took s 1 =0 to represent the touch configuration when two fragments are in contact as [21,24] and the outer turning points is defined as V(s 2 )=Q [31]. The Q-value for each probable fission fragment is defined as…”

Section: The Wkb Approximation Modelmentioning

confidence: 99%

“…The fission fragments mass yields were calculated using the WKB approximation model for spontaneous fission [20,21], cold fission [22,23] and ternary fission [24,25] of super-heavy nuclei and Actinides. Recently, Gao [26] calculated the spontaneous fission half-lives for heavy and super-heavy nuclei by applying a new method of numerically solving Schrödinger equation.…”

Section: Introductionmentioning

confidence: 99%

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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: The Wkb Approximation Modelmentioning

confidence: 99%

Section: Introductionmentioning

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 extremum values of energy at the scission point is usually used to find the atomic numbers of the fission fragments [36][37][38][39]. The exponential function is upward-sloping, so the minimum total energy at the scission point has the greatest effect in equation (2).…”

Section: The Temperature Of Fragmentsmentioning

confidence: 99%

Deformation parameter changes in fission mass yields within the systematic statistical scission-point model

Kaldiani¹

2021

Commun. Theor. Phys.

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The fission fragment mass-yields are evaluated for pre-actinide and actinide isotopes using a systematic statistical scission point model. The total potential energy of the fissioning systems at the scission point is presented in approximate relations as functions of mass numbers, deformation parameters and the temperature of complementary fission fragments. The collective temperature, T coll, and the temperature of fission fragments, T i , are separated and the effect of collective temperature on mass yields results is investigated. The fragment temperature has been calculated with the generalized superfluid model. The sum of deformation parameters of complementary fission fragments has been obtained by fitting the calculated results with the experimental data. To investigate the transitions between symmetric and asymmetric modes mass yields for pre-actinide and heavy actinides are calculated with this model. The transition from asymmetric to symmetric fission is well reproduced using this systematic statistical scission point model. The calculated results are in good agreement with the experimental data with T coll = 2 MeV at intermediate excitation energy and with T coll = 1 MeV for spontaneous fission. Despite the Langevin model, in the scission point model, a constraint on the deformation parameters of fission fragments has little effect on the results of the mass yield.

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“…In Ref. [13], isotopic yields and half-lives of 284 Cn and 284 Fl superheavy nuclei have been investigated by using CPPM as a direct way. Decay constant for each combination has been computed and then the total decay constant and fission half-life for 284 Cn and 284 Fl superheavy nuclei have been predicted.…”

Section: Introductionmentioning

confidence: 99%

“…UDL(direct way) Soylu (Eq.3) Bao (Eq.2) CPPM (direct way)[13] Exp [20,21]. …”

mentioning

confidence: 99%

Süper-ağır çekirdeklerin kendiliğinden fisyon yarı ömürlerinin farklı modellerdeki hesaplamaları

Soylu

2019

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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The spontaneous fission (SF) is a decay mode for heavy and superheavy nuclei (Z≥90) and it is an important confining factor explaning the stability of synthesized superheavy nuclei. Since the fission decay is complex, it is difficult to explain such a multi-dimensional system in a complete microscopic manner. In this study, SF half-lives of 284 Cn and 284 Fl superheavy nuclei are investigated using the direct method, the Universal Decay Law (UDL). The fission decay constant for each possible case is computed by using the UDL and then the SF half-life for 284 Cn and 284 Fl superheavy nuclei are predicted. The calculated SF half-lives are compared with the results of other semiempirical models and the experimental data. Furthermore, the results are compared with ones of the model in which they proposed this direct method for the SF by using CPPM potentials. Good agreement has been obtained between the results of present approach and the others. This study shows that UDL would also be used in the halflives calculations of Spontaneous Fission of superheavy nuclei in a direct way.

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Isotopic yield and half-life of spontaneous fission for Cn284 and Fl284 superheavy isobars using direct calculation and s

Cited by 13 publications

References 65 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

Deformation parameter changes in fission mass yields within the systematic statistical scission-point model

Süper-ağır çekirdeklerin kendiliğinden fisyon yarı ömürlerinin farklı modellerdeki hesaplamaları

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Isotopic yield and half-life of spontaneous fission for Cn284 and Fl284 superheavy isobars using direct calculation and s

Cited by 13 publications

References 65 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

Deformation parameter changes in fission mass yields within the systematic statistical scission-point model

Süper-ağır çekirdeklerin kendiliğinden fisyon yarı ömürlerinin farklı modellerdeki hesaplamaları

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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