Investigations on 54–60Fe + 238–244Pu → 296–302120 fusion reactions

Manjunatha, H. C.; Seenappa, L.; Sowmya, N.; Sridhar, K.N.

doi:10.1139/cjp-2019-0580

Cited by 25 publications

(5 citation statements)

References 53 publications

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“…We have selected the projectile-target combination in such a way that the evaporation residue cross-section is maximum. The evaporation residue cross-section is evaluated as explained in refs [74][75][76]. Later, we have selected 24 possible projectile-target combinations with maximum evaporation residue cross-sections to synthesise the superheavy nuclei 254 Db to 263 Db and tabulated in table 5.…”

Section: Resultsmentioning

confidence: 99%

Decay of dinuclear systems formed from dubnium

et al. 2021

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The radioactivity of the superheavy nuclei 250−275 Db is studied and presented using the Coulomb and proximity potentials. The half-lives corresponding to different decay modes such as α, cluster decay ( 12 C, 14 N, 18,20 O, 23 F, 20 Ne, 34 S, 28 Mg and 40 Ca) and spontaneous fission in the superheavy nuclei 250−275 Db are studied. The studied half-lives are compared with the available experiments. The decay modes and the branching ratios of isotopes of dubnium are presented. The isotopes of dubnium, 254−263 Db, are identified as α emitters, whereas isotopes such as 250−253 Db and 264−275 Db are identified as having spontaneous fission. The identified alpha emitting isotopes of dubnium have decay energies from 6 MeV to 10 MeV and half-lives 1 ms to 100 s. The possible projectile-target combinations to synthesise the superheavy nuclei 253−263 Db were predicted. The fusion of spherical projectile and target yields larger evaporation residue cross-sections.

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Section: Resultsmentioning

confidence: 99%

Decay of dinuclear systems formed from dubnium

et al. 2021

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“…Chushnyakova et al [19] evaluated heavy ion fusion cross-sections with Hartree-Fock nuclear densities. Earlier studies show a detailed investigation of entrance channel parameters, deformation effect of projectile-target, optimal energy, possible projectile-target combinations, and rules for the selection of projectile-target combina-tions [20][21][22][23][24][25][26][27][28][29][30]. The production cross section has been measured for the fusion reaction of the 16 O+ 27 Al system at different bombarding energies using the time-of-flight technique [31].…”

Section: ≤ Z ≤ 112mentioning

confidence: 99%

Empirical model for fusion cross sections of Ca-induced reactions

Rani. L,

Sowmya,

Sridhar

et al. 2024

Chinese Phys. C

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A new empirical formula for the astronomical S-factor has been suggested as a function ofthe Coulomb interaction parameter, center of mass energy, and barrier height. About 22 fusionreactions with 40,48Ca as projectiles were considered for different targets leading to compound nucleiwith the atomic and mass numbers varying between 40 ≤ Z ≤112 and 88 ≤ A ≤278 respectively.The fusion cross-sections have been estimated using the Geometric factor, Gamow-Sommerfieldfactor and empirical formula for the S-factor. A better agreement has been obtained for the presentwork with that of available experiments when compared to Wong’s formula. The present work leadsto a smaller standard deviation value when compared to Wong’s formula when used to correlatewith the experimental data of Calcium-induced fusion reactions. Wong’s formula provides a goodapproximation of fusion cross-sections when center of mass energy is below the fusion barrier whencompared to above the fusion barrier.

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“…Multinucleon transfer reactions have been studied in fusion reactions of 40 Ca+ 208 Pb by bombarding energies close to the Coulomb barrier [29]. In addition, many researchers have theoretically predicted the evaporation residue cross sections in the superheavy region [17,[33][34][35][36][37][38][39][40][41] and investigated the role of the magic number of protons and neutrons in the superheavy region [42][43][44]. Litnevsky et al [45] studied the capture, fusion, fission, and evaporation residue formation cross sections of superheavy nuclei within the previously proposed two-stage dynamical model.…”

Section: Introductionmentioning

confidence: 99%

Heavy ion fusion of spherical nuclei

Manjunatha¹,

Sowmya²,

Seenappa³

et al. 2023

Chinese Phys. C

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We have studied experimental and theoretical fusion reactions for compound nuclei that weresynthesized by different projectile-target systems among which at least one projectile/targetnuclei are spherical nuclei. The first part of this study analyses the fusion cross sections obtainedusing different projectile-target combinations in the synthesis of Polonium(Po), Thorium(Th)and Nobelium(No). The second part of this work suggests the fusion reaction to synthesizethe superheavy element Z=122. We have selected three nuclei as Polonium(Po), Thorium(Th),and Nobelium(No) which were synthesized by various projectile-target combinations. We alsoinvestigated fusion reactions such as 90Zr(208Pb,2n)296122 . This study may be a milestone in thesynthesis of superheavy element Z=122.

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Investigations on ^54–60Fe + ^238–244Pu → ^296–302120 fusion reactions

Cited by 25 publications

References 53 publications

Decay of dinuclear systems formed from dubnium

Decay of dinuclear systems formed from dubnium

Empirical model for fusion cross sections of Ca-induced reactions

Heavy ion fusion of spherical nuclei

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