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相关论文: Probing the Isospin Dependent In-Medium Nucleon-Nu…

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Nucleon-nucleon (NN) cross sections are evaluated in neutron-rich matter using a scaling model according to nucleon effective masses. It is found that the in-medium NN cross sections are not only reduced but also have a different isospin…

核理论 · 物理学 2008-11-26 Bao-An Li , Lie-Wen Chen

We study the isospin effects of the mean field and two-body collision on the nucleon emissions at the intermediate energy heavy ion collisions by using an isospin dependent transport theory. The calculated results show that the nucleon…

核理论 · 物理学 2009-11-10 Jian-Ye Liu , Yong-Zhong Xing , Wen-Jun Guo

The influence of medium correction from an isospin dependent nucleon nucleon cross section on the fragmentation and nucleon emission in the intermediate energy heavy ion collisions was studied by using an isospin dependent quantum molecular…

核理论 · 物理学 2009-11-10 Yong-Zhong Xing , Jian-Ye Liu , Wen-Jun Guo

We explore the influence of in-medium nucleon-nucleon cross section, symmetry potential and impact parameter on isospin sensitive observables in intermediate-energy heavy-ion collisions with the ImQMD05 code, a modified version of Quantum…

The in-medium neutron-proton, proton-proton(neutron-neutron) scattering cross sections($\sigma_{np}^{*}$, $\sigma_{pp(nn)}^{*}$) are studied based on QHD-II type Lagrangian within the framework of the microscopic transport theory. The…

核理论 · 物理学 2019-08-17 Qingfeng Li , Zhuxia Li , Guangjun Mao

Within a transport model we search for potential probes of the isospin dependence of the in-medium nucleon-nucleon (NN) cross sections. Traditional measures of the nuclear stopping power are found sensitive to the magnitude but they are…

核理论 · 物理学 2009-11-11 Bao-An Li , Pawel Danielewicz , William G. Lynch

The calculation of the energy-, density-, and isospin-dependent $\Delta$ production cross sections in nucleon-nucleon (NN) scattering $\sigma^*_{NN\rightarrow N\Delta}$ has been performed within the framework of the relativistic BUU…

核理论 · 物理学 2017-10-11 Qingfeng Li , Zhuxia Li

A recent updated version of the Lanzhou quantum molecular dynamics is reviewed, in which the momentum dependence of symmetry potential and the effective mass splitting of proton and neutron in nuclear medium are included in the model. The…

核理论 · 物理学 2012-02-13 Zhao-Qing Feng

Using an isospin-dependent quantum molecular dynamics, nuclear stopping in intermediate heavy ion collisions has been studied. The calculation has been done for colliding systems with different neutron-proton ratios in beam energy ranging…

核理论 · 物理学 2009-11-07 Jian-Ye Liu , Wen-Jun Guo , Shun-Jin Wang , Wei Zuo , Qiang Zhao , Yan-Fang Yang

After reviewing our microscopic approach to nuclear and neutron-rich matter, we focus on how nucleon-nucleon scattering is impacted by the presence of a dense hadronic medium, with special emphasis on the case where neutron and proton…

核理论 · 物理学 2015-06-16 Francesca Sammarruca

Using the isospin dependent quantum molecular dynamics model, we study the effect of charge asymmetry and isospin dependent cross-section on nuclear stopping and multiplicity of free nucleons and LMF's. Simulations were carried out for the…

核理论 · 物理学 2012-02-13 Anupriya Jain , Suneel Kumar , Rajeev K. Puri

Using isospin dependent quantum molecular dynamical model, the studies of the isospin effect on preequilibrium nucleon emission in heavy ion collisions under different entrance channel conditions show that the ratio of preequilibrium…

核理论 · 物理学 2009-11-07 Jian-Ye Liu , Qiang Zhao , Shun-Jin Wang , Wei Zuo , Wen-Jun Guo

Using an isospin-dependent transport model, we study isospin effects on two-nucleon correlation functions in heavy-ion collisions induced by neutron-rich nuclei at intermediate energies. We find that these correlation functions are…

核理论 · 物理学 2009-11-10 Lie-Wen Chen , V. Greco , C. M. Ko , Bao-An Li

By using the Isospin Dependent Quantum Molecular Dynamics Model (IQMD), we study the dependence of nuclear stopping Q_{ZZ}/A and R in intermediate energy heavy ion collisions on system size, initial N/Z, isospin symmetry potential and the…

核理论 · 物理学 2009-11-07 Qingfeng Li , Zhuxia Li

To understand the role of isospin effects on fragmentation due to the collisions of charge asymmetric nuclei, we have performed a complete systematical study using isospin dependent quantum molecular dynamics model. Here simulations have…

核理论 · 物理学 2015-05-30 Anupriya Jain , Suneel Kumar

In the simulation of intermediate energy heavy ion collisions by using the isospin dependent quantum molecular dynamics, the isospin effect on the process of multifragmentation and dissipation has been studied. It is found that the…

核理论 · 物理学 2009-11-07 Jian-Ye Liu , Yan-Fang Yang , Wei Zuo , Shun-Jin Wang , Qiang Zhao , Wen-Jun Guo , Bo Chen

We present a complete systematic theoretical study of multifragmentation for asymmetric colliding nuclei for heavy-ion reactions in the energy range between 50 MeV/nucleon and 1000 MeV/nucleon by using isospin dependent quantum molecular…

核理论 · 物理学 2011-09-27 Deepinder Kaur , Varinderjit Kaur , Suneel Kumar

We investigate in detail the momentum dependence ($MD$) of the effective in medium Nucleon-Nucleon ($NN$) interaction in the isovector channel. We focus the discussion on transport properties of the expected neutron-proton ($n/p$) effective…

核理论 · 物理学 2009-11-10 J. Rizzo , M. Colonna , M. Di Toro , V. Greco

Based on an isospin dependent quantum molecular dynamics model we studied the influence of a medium correction of an isospin dependent nucleon nucleon cross section on the fragmentation at the intermediate energy heavy ion collisions. We…

核理论 · 物理学 2009-11-10 Jian-Ye Liu , Yong-Zhong Xing , Wen-Jun Guo

A Skyrme-type momentum-dependent nucleon-nucleon force distinguishing isospin effect is parameterized and further implemented in the Lanzhou Quantum Molecular Dynamics (LQMD) model for the first time, which leads to a splitting of nucleon…

核理论 · 物理学 2011-09-02 Zhao-Qing Feng
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