Sensitive search for near-symmetric and super-asymmetric fusion-fission of the superheavy element Flerovium (Z=114)

Banerjee, K.; Hinde, David; Dasgupta, M.; Sadhukhan, Jhilam; Simpson, E. C.; Jeung, D. Y.; Simenel, C.; Swinton-Bland, B. M. A.; Williams, E.; Bezzina, L. T.; Carter, I.P.; Cook, K. J.; Albers, H. M.; Düllmann, Ch. E.; Khuyagbaatar, J.; Kindler, B.; Lommel, B.; Mokry, C.; Prasad, E.; Runke, J.; Schunck, N.; Sengupta, C.; Smith, J. F.; Thörle-Pospiech, P.; Trautmann, Ν.; Vo-Phuoc, K.; Walshe, J.; Yakushev, A.

doi:10.1016/j.physletb.2021.136601

Cited by 14 publications

(15 citation statements)

References 63 publications

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“…The ratio of σ 3n /σ 2n were increase along with the increasing N/Z, which shown that more-neutron-rich compound nuclei prefer to evaporate more neutrons. The existed moscovium isotopes were To investigate the influence of entrance effect on the synthesis cross section of superheavy moscovium in the fusionevaporation reactions, we have calculated the collisions of the 35 Cl + 248 Cf (η = 0.75), 40 Ar + 247 Bk (η = 0.72), 39 K + 247 Cm (η = 0.73), 40 Ca + 243 Am (η = 0.72), 48 Ca + 243 Am (η = 0.67), 45 Sc + 244 Pu (η = 0.69), 48 Ti + 237 Np (η = 0.66) and 51 V + 238 U (η = 0.65) systematically based on the DNS model, as illustrated in panels (a), (b), (c), (d), (e), (f), (g) and (h), respectively. The mass asymmetry η were respect to η = (A T − A P )/(A T + A P ).…”

Section: Tions Of Superheavy Nuclei On Collision Orientationsmentioning

confidence: 99%

“…tions of 35 Cl+ 248 Cf, 40 Ar+ 247 Bk, 39 K+ 247 Cm, 40 Ca+ 243 Am, 48 Ca+ 243 Am, 45 Sc+ 244 Pu, 48 Ti+ 237 Np and 51 V+ 238 U have been calculated to investigate the entrance channel effect on production cross sections of superheavy nuclei. The large mass asymmetry systems lead to the large production cross section.…”

Section: Tions Of Superheavy Nuclei On Collision Orientationsmentioning

confidence: 99%

“…With the development of suitable separation and detection techniques, the multinucleon transfer (MNT) mechanism might be as the most promising method used to synthesize unknown superheavy elements, which has been applied to produce massive heavy and superheavy isotopes [35]. The laboratories all over the world such as Institute of Modern Physics (IMP) [36], Gesellschatt Für Schwerionenforschung (GSI) [37,38] and DUBNA [39,40], RIKEN [41][42][43], the Lawrence Berkeley National Laboratory (LBNL) [44], Australian National University (ANU) [45] devoted constantly to synthesize new superheavy elements and their isotopes. From the chart of nuclei, in the superheavy region, there are substantial isotopes of superheavy elements which are still unknown yet.…”

Section: Introductionmentioning

confidence: 99%

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Prediction for the synthesis cross sections of new moscovium isotopes in fusion-evaporation reactions

Chen¹,

Wu²,

Yang³

et al. 2022

Preprint

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In the framework of the dinuclear system model, the synthesis mechanism of the superheavy nuclides with atomic number Z = 112, 114, 115 in the reactions of projectiles 40,48 Ca bombarding on targets 238 U, 242 Pu, and 243 Am at a wide incident energies (excitation energy from 0-100 MeV) have been investigated systematically. Based on the available experimental excitation functions, the dependence of calculated synthesis cross sections on collision orientations has been studied thoroughly. The TKEs of these collisions with the fixed collision orientation show its orientation dependence which can be used to predict the tendency of kinetic energy diffusion. The TKEs are dependent on incident energies which have been discussed. The method of Coulomb barrier distribution function has been applied in our calculations which could treat all of the collision orientations from the tip-tip to side-side approximately. The calculations of excitation functions of 48 Ca + 238 U, 48 Ca + 242 Pu, and 48 Ca + 243 Am have a nice agreement with the available experimental data. The isospin effect of projectiles on production cross sections of moscovium isotopes and the influence of entrance channel effect on the synthesis cross sections of superheavy nuclei have been discussed. The synthesis cross section of new moscovium isotopes 278−286 Mc have been predicted as large as hundreds pb, in the fusion-evaporation reactions of 35,37

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Section: Tions Of Superheavy Nuclei On Collision Orientationsmentioning

confidence: 99%

Section: Tions Of Superheavy Nuclei On Collision Orientationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Prediction for the synthesis cross sections of new moscovium isotopes in fusion-evaporation reactions

Chen¹,

Wu²,

Yang³

et al. 2022

Preprint

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“…Even more, * luguo@ucas.ac.cn the dependence of the fusion probability on the reaction entrance channel is not well established [35,36,38]. Experimentally, the fusion probability can be extracted from the measurement of fusion-evaporation residue cross sections [39,40], comparing the width of fragment mass distribution with the width expected in the case of pure fusion-fission [21,41,42], or the analysis of the fragment angular distribution [43][44][45]. Recent years, many efforts have been made to measure the fusion probability and lots of progresses have been achieved [46].…”

Section: Introductionmentioning

confidence: 99%

“…Recent years, many efforts have been made to measure the fusion probability and lots of progresses have been achieved [46]. Very recently, experimentalists have extracted the fusion probabilities for both cold-fusion and hot-fusion reactions [21,35,45]. These measurements provide new constraints to theoretical investigations for the synthesis of SHN.…”

Section: Introductionmentioning

confidence: 99%

Microscopic study of the compound nucleus formation in cold-fusion reactions

Sun,

Guo

2022

Preprint

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The understanding of the fusion probability is of particular importance to reveal the mechanism of producing superheavy elements. We present a microscopic study of the compound nucleus formation by combining timedependent density functional theory, coupled-channels approach, and dynamical diffusion models. The fusion probability and compound nucleus formation cross sections for cold-fusion reactions 48 Ca+ 208 Pb, 50 Ti+ 208 Pb, and 54 Cr+ 208 Pb are investigated and it is found that the deduced capture barriers, capture cross sections for these reactions are consistent with experimental data. Above the capture barrier, our calculations reproduce the measured fusion probability reasonably well. Our studies demonstrate that the restrictions from the microscopic dynamic theory improve the predictive power of the coupled-channels and diffusion calculations.

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Nearly Symmetric, Asymmetric, Very Asymmetric, and Super Asymmetric Fission Half-Lives of Heavy and Superheavy Elements Using a Modified Geiger-Nuttall Law

Prathapan,

Deneshan,

Rajan

et al. 2024

Braz J Phys

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Sensitive search for near-symmetric and super-asymmetric fusion-fission of the superheavy element Flerovium (Z=114)

Cited by 14 publications

References 63 publications

Prediction for the synthesis cross sections of new moscovium isotopes in fusion-evaporation reactions

Prediction for the synthesis cross sections of new moscovium isotopes in fusion-evaporation reactions

Microscopic study of the compound nucleus formation in cold-fusion reactions

Nearly Symmetric, Asymmetric, Very Asymmetric, and Super Asymmetric Fission Half-Lives of Heavy and Superheavy Elements Using a Modified Geiger-Nuttall Law

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