<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>α</mml:mi></mml:mrow></mml:math>decay of even-even superheavy elements

Denisov, V. Yu.; Khudenko, A. A.

doi:10.1103/physrevc.81.034613

Cited by 43 publications

(6 citation statements)

References 56 publications

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“…The model is the improved version of the Coulomb and proximity potential model (CPPM), proposed by Santhosh and Joseph [24]. Although the experimentally observed facts regarding the alpha decay of the SHE have been predicted within various theoretical models [25][26][27][28][29][30][31][32], works on odd mass nuclei [29,31,[33][34][35][36][37][38] are very rare. Recently, Dong and Ren [39] have proposed a formula for alpha energy for SHN based on the method of macroscopic model plus shell corrections, by using which the alpha decay energies of 294,293 117 and their decay products were reproduced very well.…”

Section: Introductionmentioning

confidence: 99%

Feasibility of observing alpha decay chains from^270–301117 super heavy nuclei

Santhosh

Priyanka

2012

J. Phys. G: Nucl. Part. Phys.

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The alpha decay of 117 super heavy nuclei is investigated within the Coulomb and proximity potential model for deformed nuclei. We have performed a systematic search for those isotopes of Z = 117 which may be detectable through experiments via alpha decay. We have predicted 3α chains for 293 117 and 6α chains for 294 117 by the comparison of alpha half-lives and spontaneous fission half-lives and it can be seen that our predictions go hand in hand with the experimental observations. Our study reveals that those isotopes of Z = 117 with A 299 and with A 271 do not survive fission and thus the alpha decay is restricted within the range 272

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Section: Introductionmentioning

confidence: 99%

Feasibility of observing alpha decay chains from^270–301117 super heavy nuclei

Santhosh

Priyanka

2012

J. Phys. G: Nucl. Part. Phys.

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“…This method has been successfully applied in many aspects of low-energy nuclear physics, in particular in the description of fission barriers of heavy nuclei [52,53,57]. Another theoretical quest was to discover a semiempirical formula describing α-emission half-lives [58,59]. These investigations are very important as α radioactivity is the dominant decay channel in many SHEs.…”

Section: Introductionmentioning

confidence: 99%

Fission half-lives of superheavy nuclei in a microscopic approach

2012

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A systematic study of 160 heavy and superheavy nuclei is performed in the Hartree-Fock-Bogoliubov (HFB) approach with the finite-range and density-dependent Gogny force with the D1S parameter set. We show calculations in several approximations: with axially symmetric and reflection-symmetric wave functions, with axially symmetric and non-reflection-symmetric wave functions, and finally with some representative triaxial wave functions. Relevant properties of the ground state and along the fission path are thoroughly analyzed. Fission barriers, Q α factors, and lifetimes with respect to fission and α decay as well as other observables are discussed. Larger configuration spaces and more general HFB wave functions as compared to previous studies provide a very good agreement with the experimental data.

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“…During the past few years, the nuclear physicists have made it possible to witness vigorous advancements in the experimental synthesis and theoretical investigations in the region of superheavy nuclei, and the developments in heavy-ion beam technologies have always accelerated such investigations. The theoretical studies [1][2][3][4][5][6][7][8][9][10][11] on the decay half-lives and decay modes of SHN have always been fascinating as they could lead to the identification of unknown isotopes in this region, and these studies could also assay the ideas developed on the structures of these nuclei.…”

Section: Introductionmentioning

confidence: 99%

“…The decay properties of SHN have been studied extensively using several theoretical models [3,5,7,[33][34][35], and a number of theoretical studies have been performed in this area during the past few years [1][2][3][4][5][6][7][8][9][10][11], the focus given mainly on the α-decay properties of these nuclei. The present paper deals with the α decay and spontaneous fission of about 48 isotopes of Z = 120 in the region 272 A 319, which also comprises the experimentally predicted isotopes of 298,299 120 within the Coulomb and proximity potential model for deformed nuclei (CPPMDN) [36].…”

Section: Introductionmentioning

confidence: 99%

Predictions for the α-decay chains ofZ=120superheavy nuclei in the range272≤A≤319

Santhosh

Priyanka

2014

Phys. Rev. C

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The predictions on the α-decay chains of the isotopes of the superheavy nuclei with Z = 120 in the range 272 A 319 have been done within the Coulomb and proximity potential model for deformed nuclei. A comparison of our calculated α half-lives with the values computed using the Viola-Seaborg [J. Inorg. Nucl. Chem. 28, 741 (1966)] systematic, the universal curve of Poenaru et al. [Phys. Rev. C 74, 014312 (2006)], and the analytical formulas of Royer [J. Phys. G: Nucl. Part. Phys. 26, 1149 (2000)] show good agreement with each other. An extensive study on the spontaneous fission half-lives of all the isotopes under study has been performed to identify the mode of decay of these isotopes. The study reveals that the α-decay half-lives and the mode of decay of the isotopes of 298,299 120, which are evaluated by using our formalisms, agree well with the experimental observations of Oganessian et al. [Phys. Rev. C 79, 024603 (2009)]. Our study on the isotopes of Z = 120 predicts that the α decay restricts within the range 277 A 308 as those isotopes with A 276 and those nuclei with A 309 do not survive fission. We have also forecasted the mode of decay of 288−302 120 superheavy nuclei as six consistent α chains from the nuclei of 288,289,291−295 120, seven consistent α chains from the nuclei of 290 120, five consistent α chains from the nuclei of 296,297 120, and three consistent α chains from the nuclei of 300−302 120, which could be of great interest to the experimentalists. The one-proton and two-proton separation energy calculations on 272−319 120 superheavy nuclei have revealed that the isotopes spanning the range 273 A 291 may be considered to be the probable proton emitters.

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αdecay of even-even superheavy elements

Cited by 43 publications

References 56 publications

Feasibility of observing alpha decay chains from^270–301117 super heavy nuclei

Feasibility of observing alpha decay chains from^270–301117 super heavy nuclei

Fission half-lives of superheavy nuclei in a microscopic approach

Predictions for the α-decay chains ofZ=120superheavy nuclei in the range272≤A≤319

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αdecay of even-even superheavy elements

Cited by 43 publications

References 56 publications

Feasibility of observing alpha decay chains from270–301117 super heavy nuclei

Feasibility of observing alpha decay chains from270–301117 super heavy nuclei

Fission half-lives of superheavy nuclei in a microscopic approach

Predictions for the α-decay chains ofZ=120superheavy nuclei in the range272≤A≤319

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Feasibility of observing alpha decay chains from^270–301117 super heavy nuclei

Feasibility of observing alpha decay chains from^270–301117 super heavy nuclei