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相关论文: Merging of transport theory with TDHF: multinucleo…

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Quantal diffusion mechanism of nucleon exchange is studied in the central collisions of $^{238}$U + $^{238}$U in the framework of the stochastic mean-field (SMF) approach. For bombarding energies considered in this work, the di-nuclear…

核理论 · 物理学 2017-08-23 S. Ayik , B. Yilmaz , O. Yilmaz , A. S. Umar , G. Turan

Nucleon exchange mechanism is investigated in the central collisions of ${}^{40}$Ca + ${}^{238}$U and ${}^{48}$Ca + ${}^{238}$U systems near the quasi-fission regime in the framework of the Stochastic Mean-Field (SMF) approach. Sufficiently…

核理论 · 物理学 2016-01-12 S. Ayik , B. Yilmaz , O. Yilmaz

Multinucleon transfer mechanism in collision of ${}^{160}\mathrm{Gd}+{}^{186}\mathrm{W}$ system is investigated in the framework of quantal transport description, based on the stochastic mean-field (SMF) theory. The SMF theory provides a…

核理论 · 物理学 2023-08-02 S. Ayik , M. Arik , E. Erbayri , O. Yilmaz , A. S. Umar

As an extension of previous work, we calculate the production cross-section of heavy neutron-rich isotopes by employing the quantal diffusion description to ${}^{48} \text{Ca} + {}^{238} \text{U}$ collisions. The quantal diffusion is…

核理论 · 物理学 2021-12-15 S. Ayik , M. Arik , E. C. Karanfil , O. Yilmaz , B. Yilmaz , A. S. Umar

We theoretically investigate multinucleon transfer (MNT) processes in $^{238}$U+$^{124}$Sn reaction at $E_\mathrm{lab}=5.7$ MeV/$A$ using the time-dependent Hartree-Fock (TDHF) theory. For this reaction, measurements of MNT processes have…

核理论 · 物理学 2016-11-10 Kazuyuki Sekizawa , Kazuhiro Yabana

Employing the stochastic mean-field (SMF) approach, we develop a quantal diffusion description of the multi-nucleon transfer in heavy-ion collisions at finite impact parameters. The quantal transport coefficients are determined by the…

核理论 · 物理学 2018-06-06 S. Ayik , B. Yilmaz , O. Yilmaz , A. S. Umar

The dynamics of transfer reactions in collisions of two very heavy nuclei $^{238}$U+$^{238}$U is studied within the dinuclear system (DNS) model. Collisions of two actinide nuclei form a super heavy composite system during a very short…

核理论 · 物理学 2015-05-18 Zhao-Qing Feng , Gen-Ming Jin , Jun-Qing Li

This work aims to show that the quantal diffusion approach based on the stochastic mean field (SMF) theory is capable of explaining the reaction dynamics observed in MNT reactions. Primary product mass distributions in $^{48}$Ca+$^{244}$Pu…

核理论 · 物理学 2023-08-31 M. Arik , S. Ayik , O. Yilmaz , A. S. Umar

Background: Multinucleon transfer (MNT) and quasifission (QF) processes are dominant processes in low-energy collisions of two heavy nuclei. They are expected to be useful to produce neutron-rich unstable nuclei. Nuclear dynamics leading to…

核理论 · 物理学 2016-05-25 Kazuyuki Sekizawa , Kazuhiro Yabana

Employing a quantal diffusion description based on the stochastic mean-field (SMF) approach, we analyze the mass distribution of the primary fragments in the collisions of ${}^{136} \text{Xe}+{}^{208} \text{Pb}$ system at the bombarding…

核理论 · 物理学 2019-07-31 S. Ayik , B. Yilmaz , O. Yilmaz , A. S. Umar

Production cross-sections of heavy neutron-rich isotopes are calculated by employing quantal transport description in ${}^{250}\text{Cf}+{}^{232}\text{Th}$ collisions. This quantal transport description is based on the stochastic mean-field…

核理论 · 物理学 2022-10-18 S. Ayik , M. Arik , O. Yilmaz , B. Yilmaz , A. S. Umar

Background: Multi-nucleon transfer (MNT) reactions in actinide systems are a promising method to synthesize transuranium neutron-rich elements. Appropriate theoretical approaches are needed to understand the mechanism behind MNT. Purpose:…

核理论 · 物理学 2024-11-19 S. E. Ocal , O. Yilmaz , S. Ayik , A. S. Umar

Multinucleon transfer processes in low-energy heavy ion reactions have attracted increasing interest in recent years aiming at production of new neutron-rich isotopes. Clearly, it is an imperative task to further develop understanding of…

核理论 · 物理学 2017-11-08 Kazuyuki Sekizawa

Recent experiments revealed intriguing similarities in the $^{64}$Ni+$^{207}$Pb, $^{132}$Xe+$^{208}$Pb, and $^{238}$U+$^{238}$U reactions at energies around the Coulomb barrier. The experimental data indicate that for all systems…

核理论 · 物理学 2017-03-01 Kazuyuki Sekizawa , Sophia Heinz

Background: Multinucleon transfer reactions at energies around the Coulomb barrier offer a vital opportunity to study rich physics of nuclear structure and dynamics. Despite the continuous development in the field, we have still limited…

The use of actinide collisions have been suggested as a way to produce neutron rich isotopes of high Z nuclei. The collision dynamics of these reactions can be studied using unrestricted time-dependent Hartree-Fock (TDHF) calculations.…

核理论 · 物理学 2018-05-09 A. S. Umar , C. Simenel

The multinucleon transfer process is regarded as a promising pathway for producing the stable superheavy elements. However, the underlying mechanism, especially the possible transfer channels for sailing to the ``island of stability'' are…

核理论 · 物理学 2025-10-14 Zepeng Gao , Yinu Zhang , Long Zhu

Quantal diffusion mechanism of nucleon exchange is studied in the central collisions of several symmetric heavy-ion collisions in the framework of the Stochastic Mean-Field (SMF) approach. Since at bombarding energies below the fusion…

核理论 · 物理学 2016-11-23 S. Ayik , O. Yilmaz , B. Yilmaz , A. S. Umar

Nucleon drift and diffusion mechanisms in central collisions of asymmetric heavy-ions at near-barrier energies are investigated in the framework of a stochastic mean-field approach. Expressions for diffusion and drift coefficients for…

核理论 · 物理学 2011-07-08 B. Yilmaz , S. Ayik , D. Lacroix , K. Washiyama

The multinucleon transfer reactions near barrier energies has been investigated with a multistep model based on the dinuclear system (DNS) concept, in which the capture of two colliding nuclei, the transfer dynamics and the de-excitation…

核理论 · 物理学 2018-01-03 Fei Niu , Peng-Hui Chen , Ya-Fei Guo , Chun-Wang Ma , Zhao-Qing Feng
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