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Related papers: Isospin effects on squeeze-out flow in heavy-ion c…

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We introduce isospin dependence in the cluster recognition algorithms used in the Quantum Molecular Dynamics model to describe fragment formation in heavy ion collisions. This change reduces the yields of emitted nucleons and enhances the…

Nuclear Theory · Physics 2015-06-05 Yingxun Zhang , Zhuxia Li , Chengshuang Zhou , M. B. Tsang

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…

Nuclear Theory · Physics 2009-11-10 Lie-Wen Chen , V. Greco , C. M. Ko , Bao-An Li

Based on the isospin-dependent quantum molecular dynamics model along with the GEMINI model, heavy-ion collisions at intermediate energies are studied. We calculate the production cross sections of different fragments for reactions of…

Nuclear Theory · Physics 2015-03-30 Donghong Zhang , Wenjie Xie , Jun Su , Fengshou Zhang

We study the relative contribution of the symmetry energy and isospin dependence of the nucleon-nucleon cross section to the collective transverse in-plane flow for the reactions of Ca+Ca having N/Z varying from 1.0, 1.6 and 2.0. We see…

Nuclear Theory · Physics 2011-12-14 Sakshi Gautam

In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, sensitive regions of some nucleon observables to the nuclear symmetry energy are studied. It is found that the symmetry energy sensitive observable n/p…

Nuclear Theory · Physics 2018-03-12 Xiao-Hua Fan , Gao-Chan Yong , Wei Zuo

We employ an isospin dependent version of the QMD transport model to study the influence of the isospin dependent part of the nuclear matter equation of state and in-medium nucleon-nucleon cross-sections on the dynamics of heavy-ion…

Nuclear Theory · Physics 2011-09-23 M. D. Cozma

Within an isospin-dependent transport model for nuclear reactions involving neutron-rich nuclei, we study the first-order direct transverse flow of protons and their second-order differential elliptic flow as a function of transverse…

Nuclear Theory · Physics 2009-11-07 Bao-An Li , Andrew T. Sustich , Bin Zhang

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…

Nuclear Theory · Physics 2011-09-02 Zhao-Qing Feng

In nuclear collisions induced by stable or radioactive neutron-rich nuclei a transient state of nuclear matter with an appreciable isospin asymmetry as well as thermal and compressional excitation can be created. This offers the possibility…

Nuclear Theory · Physics 2015-06-26 Bao-An Li , Che Ming Ko , Wolfgang Bauer

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…

Nuclear Theory · Physics 2008-11-26 Bao-An Li , Lie-Wen Chen

The reaction mechanism of the central collisions and peripheral collisions for $^{112,124}Sn+^{112,124}Sn$ at $E/A=50MeV$ is investigated within the framework of the Improved Quantum Molecular Dynamics model. The results show that…

Nuclear Theory · Physics 2014-11-20 Yingxun Zhang , M. B. Tsang , Zhuxia Li , P. Danielewicz , W. G. Lynch , Xiaohua Lu

Using an isospin- and momentum-dependent transport model we study effects of the momentum-dependent symmetry potential on heavy-ion collisions induced by neutron-rich nuclei. It is found that symmetry potentials with and without the…

Nuclear Theory · Physics 2008-11-26 Bao-An Li , Champak B. Das , Subal Das Gupta , Charles Gale

A concept of \emph{isospin blocking} in the process of isospin diffusion in heavy-ion collisions is raised. Generally, in the process of isospin diffusion, isospin asymmetry would diffuse from the place with large asymmetry to the place…

Nuclear Theory · Physics 2022-08-31 Ya-Fei Guo , Gao-Chan Yong

We show that in collisions with neutron rich heavy ions at energies around the production threshold K^0 and K^+ yields might probe the isospin dependent part of the nuclearEquation of State (EoS) at high baryon densities. In particular we…

Nuclear Theory · Physics 2008-11-26 G. Ferini , T. Gaitanos , M. Colonna , M. Di Toro , H. H. Wolter

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…

Nuclear Theory · Physics 2015-05-30 Anupriya Jain , Suneel Kumar

The peripheral heavy-ion collisions of $^{112, 124}Sn+ ^{86}Kr$ at $E_{b}= 25AMeV$ are studied by means of the Improved Quantum Molecular Dynamics Model(ImQMD). It is shown that the slope of the average N/Z ratio of emitted nucleons vs…

Nuclear Theory · Physics 2009-11-11 Yingxun Zhang , Zhuxia Li

We study the transverse flow for systems having various N/Z ratios. We find the transverse flow is sensitive to N/Z ratio and, in fact, increases with N/Z of the system. The relative contribution of symmetry energy and isospin dependence of…

Nuclear Theory · Physics 2015-05-28 Sakshi Gautam , Rajeev K. Puri

High energy Heavy Ion Collisions (HIC) are studied in order to access nuclear matter properties at high density. Particular attention is paid to the selection of observables sensitive to the poorly known symmetry energy at high baryon…

Nuclear Theory · Physics 2015-03-13 V. Giordano , M. Colonna , M. Di Toro , V. Greco , J. Rizzo

Some isospin dynamics results in heavy ion collisions from low to relativistic energies obtained through transport approaches, largely inspired by David M.Brink, are reviewed. At very low energies, just above the Coulomb barrier, the…

Nuclear Theory · Physics 2007-05-23 M. Di Toro

Using the isospin-dependent quantum molecular dynamics model we study the isospin effects on the disappearance of flow for the reactions of 58Ni+58Ni and 58Fe+58Fe as a function of impact parameter. We found good agreement between our…

Nuclear Theory · Physics 2010-09-27 S. Gautam , Aman D. Sood , Rajeev K. Puri , Ch. Hartnack , J. Aichelin