Formation of heavy neutron-rich nuclei by 
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-induced multinucleon transfer reactions

Cheng, Zhi; Bao, Xiao Jun

doi:10.1103/physrevc.103.024613

Cited by 6 publications

(12 citation statements)

References 69 publications

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“…In theory calculation, Q value of the reactions 48 Ca+ 248 Cm → 296 Lv * is -166. 57 MeV, the V Bass potential is 197.12 MeV, which indicated by solid black arrow. The dash line and solid line are calculated excitation functions correspond to 3n and 4n evaporation channels.…”

Section: Resultsmentioning

confidence: 96%

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Rare Isotope Formation in Complete Fusion and Multinucleon Transfer Reactions in Collisions of 48Ca +248Cm around Coulomb Barrier Energies

Chen,

Niu,

et al. 2022

Preprint

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Within the framework of dinuclear system model, the reaction mechanisms for synthesizing targetlike isotopes from Bk to compound nuclei Lv are thoroughly investigated in complete and incomplete fusion reaction of 48 Ca + 248 Cm around Coulomb barrier energies. Production cross section of 292,293 Lv as a function of excitation energy in fusion-evaporation reactions and target-like isotopic yields in multinucleon transfer reactions are evaluated, in which a statistical approach is used to describe the decay process of excited nuclei. The available experimental data can be reproduced well with the model reasonably. The products of all possible formed isotopes in the dynamical preequilibrium process for collision partners at incident energy E lab = 5.5 MeV/nucleon are exported, systematically. It is found that the quasi-fission fragments are dominant in the yields. The optimal pathway from target to compound nuclei shows up along the valley of potential surface energy. The effective impact parameter of two colliding partners leading to compound nuclei is selected from head on collison to semicentral collision with L = 52 h. The timescale boundary between complete fusion and multinucleon transfer reactions is about 5.7×10 −21 s with effective impact parameters. Synthesis cross section of unknown neutron-rich actinides from Bk to Rf have been predicted around several nanobarn.

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Section: Resultsmentioning

confidence: 96%

“…In this paper, we report on production of Bk, Cf, Es and Fm only. The production of below target isotopes have been discussed in paper[57].In the year 2000, experiments of48 Ca+ 248 Cm at incident energies E lab = 265.4, 270.2 MeV have been performed in GSI…”

mentioning

confidence: 99%

Rare Isotope Formation in Complete Fusion and Multinucleon Transfer Reactions in Collisions of 48Ca +248Cm around Coulomb Barrier Energies

Chen,

Niu,

et al. 2022

Preprint

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“…Many approaches have been developed to explain and predict the experimental data of MNT reactions. The current theoretical models can be roughly divided into macroscopic-microscopic [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] and purely microscopic models [36][37][38][39][40][41][42][43][44]. Among them, the improved dinuclear system (DNS) model can be used to describe the process of massive nucleon transfer between two colliding nuclei from the perspective of diffusion on the multi-dimensional potential energy surface (PES) by solving the four-variables master equations [27,28].…”

Section: Introductionmentioning

confidence: 99%

“…Among them, the improved dinuclear system (DNS) model can be used to describe the process of massive nucleon transfer between two colliding nuclei from the perspective of diffusion on the multi-dimensional potential energy surface (PES) by solving the four-variables master equations [27,28]. The improved DNS model has been used to study the MNT processes in Ca+ Pb, Ni+ Pb, Ar+ Pb, Ni+ Pb, Xe+ Pb, Xe+ Pt, Ca+ U, and Ca+ Cm, U+ U, U+ Cm, Xe+ Cm, and Xe+ Cf reactions [34,35] at energies near the Coulomb barrier. Studies have shown that the improved DNS model is effective in describing the observed production cross-sections around the average values.…”

Section: Introductionmentioning

confidence: 99%

“…The improved DNS model+GEMINI++ is effective in describing the observed production cross-sections for a wide range of transfer nucleons and projectile-target combinations around the average values. To test our calculated abilities on the production cross sections using the DNS model +GEMINI++ [45,46], our investigations are performed with one set of parameters and with the same assumptions as our previous study [34]. The first objective of this paper is to test the effectiveness of the improved DNS model+GEMINI++ in describing the cross section of final products of the reaction systems Ca+ Sn and Ni+ Te.…”

Section: Introductionmentioning

confidence: 99%

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Possibilities of synthesizing new proton-rich nuclei with 40 ≤ Z ≤ 60 using multinucleon transfer reactions *

Cheng¹,

Bao²

2022

Chinese Phys. C

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Multinucleon transfer reactions near the Coulomb barrier have been investigated based on the improved dinuclear system (DNS) model, and the deexcitation process of primary fragments are described by statistical model GEMINI++. The production cross sections of $^{40,48}$Ca+$^{124}$Sn and $^{64}$Ni+$^{130}$Te based on the DNS model+GEMINI++ have been calculated and compared with the experimental data. The calculated results have reproduced the experimental data. The cross sections of fusion-evaporation reaction, fragmentation reaction and multinucleon transfer reaction in the $40 \leq Z \leq 60$ region are also given in this paper. The results show that in the $40 \leq Z \leq 60$ region, fusion-evaporation and fragmentation reactions have good results in the relatively proton-rich region, but in the extreme proton-deficient region, the MNT reaction is still promising to synthesize proton-rich nuclei.

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Effect of deformation dependence and mirror nucleus corrections energy on multinucleon transfer reaction cross sections

Zhao¹,

Bao²,

Zhang³

2023

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

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Multinucleon transfer reactions are currently a powerful way to synthesize \red{neutron rich nuclei}. To explore the effect of nucleus deformation and mirror nucleus shell corrections energy in the nucleus mass model on the calculation of multinucleon transfer reaction cross sections in the dinuclear system(DNS) model. In this paper, three macroscopic-microscopic mass models are selected and the transfer reaction cross sections are calculated for $^{136}$Xe+$^{208}$Pb and $^{64}$Ni+$^{238}$U by improved DNS model+GEMINI++, respectively. The mirror nucleus shell correction energy does not improve the accuracy of the cross section of the transfer reaction. \red{The introduction of a different dependence of the Coulomb and surface energy on the deformation can improve the calculation of the transfer reaction cross section when the projectile and target nuclei are deformed nuclei.}

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Formation of heavy neutron-rich nuclei by Ca48 -induced multinucleon transfer reactions

Cited by 6 publications

References 69 publications

Rare Isotope Formation in Complete Fusion and Multinucleon Transfer Reactions in Collisions of 48Ca +248Cm around Coulomb Barrier Energies

Rare Isotope Formation in Complete Fusion and Multinucleon Transfer Reactions in Collisions of 48Ca +248Cm around Coulomb Barrier Energies

Possibilities of synthesizing new proton-rich nuclei with 40 ≤ Z ≤ 60 using multinucleon transfer reactions *

Effect of deformation dependence and mirror nucleus corrections energy on multinucleon transfer reaction cross sections

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