Effects of large mass transfer and statistical decay on ternary breakup in the reaction<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">U</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>238</mml:mn></mml:mrow></mml:mmultiscripts><mml:mspace width="0.16em" /><mml:mo>+</mml:mo><mml:mspace width="0.16em" /><mml:mmultiscripts><mml:mi mathvariant="normal">Au</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>197</mml:mn></mml:mrow></mml:mmul

Jiang, Xiang; Yan, Shiwei

doi:10.1103/physrevc.90.024612

Cited by 6 publications

(4 citation statements)

References 46 publications

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“…Theoretical exploration of MNT reaction is a key instrument in providing the transfer cross section information, as well as the angular and energy distributions. Up to now, many theoretical models have been developed to describe the MNT reaction with various approximations, such as the GRAZING model [8,[19][20][21][22][23], the CWKB model [24,25], the dinuclear system model (DNS) model [2,[26][27][28][29][30][31][32][33][34][35][36][37][38], the Langevin equations [4,[39][40][41], the time dependent Hartree-Fock (TDHF) model [42][43][44], the stochastic mean-field (SMF) theory [45,46], and the quantum molecular dynamics (QMD) model [47][48][49][50], and so on.…”

Section: Introductionmentioning

confidence: 99%

Multinucleon transfer reaction from view point of dynamical dinuclear system method

Wen

Nasirov

Lin

et al. 2020

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

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The dinuclear system (DNS) model has been widely used to explain different heavy-ion reactions such as fusion, quasifission and fission. In previous studies, the DNS is treated as a local N/Z equilibrium system formed after the capture process in the final stage of the reaction. In this work, we generalize the DNS concept to describe the multi-nucleon transfer (MNT) reaction in the dynamical radial process. By treating the ensemble of projectile and target at any distance as the dinuclear system, we solve the semi-classical dynamical radial equation and the master equation for the proton and neutron distributions in the dinuclear system (DyDNS) simultaneously for the first time. In this method, the classical radial movement is coupled to the internal quantum single particle transition between the colliding nuclei. The dynamical Monte Carlo method is engaged to simulate the solutions, and then the GEMINI++ model is adopted to deal with the de-excitations. To illustrate the validity of our approach, the MNT reaction 136Xe + 208Pb has been re-examined. The obtained results demonstrate a better agreement with the available experimental data than the calculations of the GRAZING model, especially for the transfer of many nucleons.

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Section: Introductionmentioning

confidence: 99%

Multinucleon transfer reaction from view point of dynamical dinuclear system method

Wen

Nasirov

Lin

et al. 2020

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

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“…Different theoretical models have been developed to describe the MNT process under certain approximations, such as the GRAZING model [2,19,20], the CWKB model [21,22], the dinuclear system (DNS) model [5,8,9,[23][24][25][26][27][28], the Langevin equations [7,29,30], the time-dependent Hartree-Fock (TDHF) model [31][32][33][34][35], and the quantum molecular dynamics (QMD) model [36][37][38]. These models give us information about the production of the primary fragments in MNT reactions.…”

Section: Introductionmentioning

confidence: 99%

“…The influence of neutron and charged particle evaporation in the MNT reaction of heavy systems has not been well studied yet. Besides, it is necessary to test the fission of primary fragments generated by GRAZING with more systematically testified models, for instance, the Monte Carlo statisticalmodel code GEMINI [35,38,[51][52][53][54] and the improved version GEMINI++ [32][33][34][35]55,56]. In this paper, the evaporation and fission of the MNT primary fragments are studied by using the semiclassical model GRAZING accompanied by GEMINI and GEMINI++.…”

Section: Introductionmentioning

confidence: 99%

Evaporation and fission of the primary fragments produced by multinucleon transfer reactions

Wen

Lin

et al. 2019

Phys. Rev. C

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The multinucleon transfer (MNT) reaction has aroused wide interest in recent years largely due to its ability to produce neutron-rich heavy nuclei. The semiclassical model GRAZING can describe well the experimental MNT data for many medium-heavy systems, but only simply considers neutron evaporation in the deexcitation of primary fragments. In order to describe the final MNT products for heavy and even superheavy systems, we try to consider both the transfer and subsequent deexcitation processes by combining, for the first time, the GRAZING model and the statistical-decay model GEMINI as well as the improved version GEMINI++. Considering fission in the deexcitation of primary fragments by GEMINI++ model, the isotope distributions of final fragments are much wider than those only by GRAZING model, indicating an important role of fission in the deexcitation process for heavy and superheavy fragments. However, our results have large deviations from the GRAZING-F results, which may result from the different technique adopted in the deexcitation process. Moreover, it is shown that the GEMINI++ model is more reasonable than the GEMINI model, because the latter overpredicts the fission probability and the width of fission isotope distributions to a large extent. With GEMINI++ model, the predictions of cross sections for final isotopes can be improved by taking into account charged-particle evaporations, especially the α evaporation.

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“…This can be cured by using the statistical code GEMINI++ after dynamical simulations. Such combination has been widely used recently [8,38,[40][41][42].…”

Section: Introductionmentioning

confidence: 99%

Production mechanism of neutron-rich nuclei around $N=126$ in multi-nucleon transfer reaction $^{132}$Sn + $^{208}$Pb

Jiang,

Wang

2018

Preprint

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Time-dependent Hartree-Fock approach in three dimensions is employed to study the multi-nucleon transfer reaction 132 Sn + 208 Pb at various incident energies above the Coulomb barrier. Probabilities for different transfer channels are calculated by using particle-number projection method. The results indicate that neutron stripping (transfer from the projectile to the target) and proton pick-up (transfer from the target to the projectile) are favored. Deexcitation of the primary fragments are treated by using the state-of-art statistical code GEMINI++. Primary and final production cross sections of the target-like fragments (with Z = 77 to Z = 87) are investigated. The results reveal that fission decay of heavy nuclei plays an important role in the deexcitation process of nuclei with Z > 82. It is also found that the final production cross sections of neutron-rich (deficient) nuclei slightly (strongly) depend on the incident energy.

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Effects of large mass transfer and statistical decay on ternary breakup in the reactionU238+Au197

Cited by 6 publications

References 46 publications

Multinucleon transfer reaction from view point of dynamical dinuclear system method

Multinucleon transfer reaction from view point of dynamical dinuclear system method

Evaporation and fission of the primary fragments produced by multinucleon transfer reactions

Production mechanism of neutron-rich nuclei around $N=126$ in multi-nucleon transfer reaction $^{132}$Sn + $^{208}$Pb

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