Theoretical study of the synthesis of superheavy nuclei with<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>Z</mml:mi><mml:mo>=</mml:mo><mml:mn>119</mml:mn></mml:mrow></mml:math>and 120 in heavy-ion reactions with trans-uranium targets

Wang, Nan; Zhao, En-Guang; Scheid, W.; Zhou, Shan‐Gui

doi:10.1103/physrevc.85.041601

Cited by 146 publications

(44 citation statements)

References 44 publications

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“…Nuclear rotational states are related to static deformations of the interacting nuclei. Furthermore, when the two nuclei come close enough to each other, both nuclei are distorted owing to the attractive nuclear force and the repulsive Coulomb force, thus dynamical deformations develop [12,44]. Considering the dynamical deformation, a two-dimensional potential energy surface (PES) with respect to relative distance R and quadrupole deformation of the system can be obtained.…”

Section: Methodsmentioning

confidence: 99%

“…The study of fusion reaction mechanism is also of fundamental importance for understanding the synthesis of superheavy elements, properties of weakly bound nuclei, and symmetry energy of the nuclear equation of state [8][9][10][11][12][13][14][15][16][17] Up to now, lots of important information about fusion dynamics at energies near the Coulomb barrier, especially at sub-barrier energies, are obtained through experimental and theoretical studies, such as the fusion hindrance phenomenon at extreme low energies-a steep falloff of the fusion cross sections [18][19][20][21][22][23], the role of the neutron transfer effect in the fusion [24][25][26][27], the breakup effect on the fusion reactions process [28][29][30][31][32][33][34][35], etc..…”

Section: Introductionmentioning

confidence: 99%

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Theoretical study of fusion reactions 32S + 94,96Zr and 40Ca + 94,96Zr and quadrupole deformation of 94Zr

Wang

Zhao

et al. 2016

Sci. China Phys. Mech. Astron.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theoretical study of fusion reactions 32S + 94,96Zr and 40Ca + 94,96Zr and quadrupole deformation of 94Zr

Wang

Zhao

et al. 2016

Sci. China Phys. Mech. Astron.

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“…The study of fusion cross sections both above and below the barrier has been performed for many systems using a * kyle.s.godbey@vanderbilt.edu † luguo@ucas.ac.cn ‡ umar@compsci.cas.vanderbilt.edu number of distinct techniques, though most approaches ultimately require a heavy-ion interaction potential as the starting point [6]. How one obtains such a potential is also varied, though two main classes can be roughly identified: phenomenological models [7][8][9][10][11][12][13][14][15][16] and (semi-)microscopic models [17][18][19][20][21][22][23][24][25][26]. Within each class there are myriad methods and assumptions, so we focus on the (semi-)microscopic class of methods which are more germane to the current work.…”

Section: Introductionmentioning

confidence: 99%

Influence of the tensor interaction on heavy-ion fusion cross sections

2019

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Background: While the tensor interaction has been shown to significantly affect the nuclear structure of exotic nuclei, its influence on nuclear reactions has only recently been investigated. The primary reason for this neglect is the fact that most studies of nuclear dynamics do not include the tensor force at all in their models. Indeed, only a few Skyrme parametrizations consider the tensor interaction in parameter determination. With modern research facilities extending our ability to probe exotic nuclei, a correct description of nuclear dynamics and heavy-ion fusion is vital to both supporting and leading experimental efforts. Purpose: To investigate the effect of the tensor interaction on fusion cross sections for a variety of nuclear reactions spanning light and heavy nuclei. Method: Fusion cross sections are calculated using ion-ion potentials generated by the fully microscopic density-constrained time-dependent Hartree-Fock (DC-TDHF) method with the complete Skyrme tensor interaction. Results: For light nuclei, the tensor force only slightly changes the sub-barrier fusion cross sections at very low energies. Heavier nuclei, however, begin to exhibit a substantial hindrance effect in the sub-barrier region. This effect is strongest in spin-unsaturated systems, though can manifest in other configurations as well. Static, ground state deformation effects of the tensor force can also affect cross sections by shifting the fusion barrier. Conclusions: The tensor interaction has a measurable effect on the fusion cross sections of nuclei spanning the nuclear chart. The effect comes from both static effects present in the ground state and dynamic processes arising from the time evolution of the system. This motivates the development of a modern Skyrme parameter set that includes all time-odd and tensor terms and that studies moving forward should include the tensor force to ensure a more robust and complete description of nuclei.

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“…The structure properties of the proton-rich nuclei (PRN) associated with the fission barrier, density profiles of neutrons and protons, proton-drip line, level spectra etc would be helpful to extend the superheavy region. A number of models have been developed for understanding the formation mechanism of superheavy nuclei and heavy PRN in the fusion-evaporation reactions [7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The formation of superheavy nuclei in the massive fusion reactions is hindered due to the quasifission process.…”

Section: Introductionmentioning

confidence: 99%

Production of proton-rich nuclei around Z = 84-90 in fusion-evaporation reactions

et al. 2017

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Within the framework of the dinuclear system model, production cross sections of proton-rich nuclei with charged numbers of Z=84-90 are investigated systematically. Ta are analyzed thoroughly. The optimal excitation energies and evaporation channels are proposed to produce the proton-rich nuclei. The systems are feasible to be constructed in experiments. It is found that the neutron shell closure of N=126 is of importance during the evaporation of neutrons. The experimental excitation functions in the 40 Ar induced reactions can be nicely reproduced. The charged particle evaporation is comparable with neutrons in cooling the excited proton-rich nuclei, in particular for the channels with α and proton evaporation. The production cross section increases with the mass asymmetry of colliding systems because of the decrease of the inner fusion barrier. The channels with pure neutron evaporation depend on the isotopic targets. But it is different for the channels with charged particles and more sensitive to the odd-even effect. PACS number(s): 25.70. Jj, 25.60.Pj,

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Theoretical study of the synthesis of superheavy nuclei withZ=119and 120 in heavy-ion reactions with trans-uranium targets

Cited by 146 publications

References 44 publications

Theoretical study of fusion reactions 32S + 94,96Zr and 40Ca + 94,96Zr and quadrupole deformation of 94Zr

Theoretical study of fusion reactions 32S + 94,96Zr and 40Ca + 94,96Zr and quadrupole deformation of 94Zr

Influence of the tensor interaction on heavy-ion fusion cross sections

Production of proton-rich nuclei around Z = 84-90 in fusion-evaporation reactions

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