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Using an isospin- and momentum-dependent transport model, we study the effects due to the momentum dependence of isoscalar nuclear potential as well as that of symmetry potential on two-nucleon correlation functions and light cluster…

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

The nuclear symmetry energy, which describes the energy difference of per proton and neutron in nuclear matter, has been extensively studied within the last two decades. Around saturation density, both the value and the slope of the nuclear…

Nuclear Theory · Physics 2020-07-21 Gao-Chan Yong , Ya-Fei Guo

We investigate the sensitivity of several observables to the density dependence of the symmetry potential within the microscopic transport model UrQMD (ultrarelativistic quantum molecular dynamics model). The same systems are used to probe…

Nuclear Theory · Physics 2016-08-16 Qingfeng Li , Zhuxia Li , Sven Soff , Marcus Bleicher , Horst Stöcker

Significant progress has been made in recent years in constraining nuclear symmetry energy at and below the saturation density of nuclear matter using data from both terrestrial nuclear experiments and astrophysical observations. However,…

Nuclear Theory · Physics 2015-06-12 Bao-An Li , Lie-Wen Chen , Farrukh J. Fattoyev , William G. Newton , Chang Xu

Using an isospin-dependent transport model, we study the effects of nuclear symmetry energy on two-nucleon correlation functions in heavy ion collisions induced by neutron-rich nuclei. We find that the density dependence of the nuclear…

Nuclear Theory · Physics 2009-11-07 Lie-Wen Chen , Vincenzo Greco , Che Ming Ko , Bao-An Li

The coalescence model based on nucleon distribution functions from an isospin-dependent transport model is used to study the production of light clusters such as deuteron, triton, and $^{3}$He from heavy-ion collisions induced by…

Nuclear Theory · Physics 2015-06-26 Lie-Wen Chen , C. M. Ko , Bao-An Li

In this work we study the effect of the symmetry energy on several properties of neutron stars. First, we discuss its effect on the density, proton fraction and pressure of the neutron star crust-core transition. We show that whereas the…

The density dependence of the symmetry energy in the equation of state of asymmetric nuclear matter (N/Z $>$ 1) is important for understanding the structure of systems as diverse as the atomic nuclei and neutron stars. Due to a proper lack…

Nuclear Experiment · Physics 2009-11-11 D. V. Shetty , S. J. Yennello , G. A. Souliotis

Symmetry energy for asymmetric nuclear matter at subsaturation densitieswas investigated in the framework of an isospin-dependent quantum molecular dynamics model.Asingle ratio of neutrons and protons is comparedwith the experimental data…

Nuclear Theory · Physics 2011-11-18 Sanjeev Kumar , Y. G. Ma , G. Q. Zhang , C. L. Zhou

Incorporating a newly improved isospin- and momentum-dependent interaction in the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model IBUU11, we have investigated relative effects of the density dependence of nuclear symmetry…

Nuclear Theory · Physics 2015-04-16 Hai-Yun Kong , Yin Xia , Jun Xu , Lie-Wen Chen , Bao-An Li , Yu-Gang Ma

We examine how the properties of inhomogeneous nuclear matter at subnuclear densities depend on the density dependence of the symmetry energy. Using a macroscopic nuclear model we calculate the size and shape of nuclei in neutron star…

Nuclear Theory · Physics 2008-11-26 Kazuhiro Oyamatsu , Kei Iida

Collisions involving 112Sn and 124Sn nuclei have been simulated with the improved Quantum Molecular Dynamics transport model. The results of the calculations reproduce isospin diffusion data from two different observables and the ratios of…

Nuclear Experiment · Physics 2014-11-18 M. B. Tsang , Yingxun Zhang , P. Danielewicz , M. Famiano , Zhuxia Li , W. G. Lynch , A. W. Steiner

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

The nuclear symmetry energy determines the birth of neutron stars and the elementary nucleosynthesis in the universe. To constrain the nuclear symmetry energy, besides the studies in astrophysics, many terrestrial nuclear experiments are…

Nuclear Theory · Physics 2016-04-20 Gao-Chan Yong

High density behaviour of nuclear symmetry energy is studied on the basis of a stiffest density dependence of asymmetric contribution to energy per nucleon in charge neutral $n+p+e+\mu$ matter under beta equilibrium. The density dependence…

General Physics · Physics 2016-11-09 B Behera , T R Routray , S K Tripathy

The possibility to draw links between the isospin properties of nuclei and the structure of compact stars is a stimulating perspective. In order to pursue this objective on a sound basis, the correlations from which such links can be…

Nuclear Theory · Physics 2011-05-23 Camille Ducoin , Jérôme Margueron , Constança Providência , Isaac Vidaña

The nuclear symmetry energy at densities above saturation density ($\rho_0\sim 0.16 fm^{-3}$) is poorly constrained theoretically and very few relevant experimental data exist. Its study is possible through Heavy Ion Collisions (HIC) at…

Nuclear Theory · Physics 2014-11-20 V. Greco , M. Colonna , M. Di Toro , H. H. Wolter

Hanbury Brown-Twiss (HBT) results of the neutron-proton correlation function have been systematically investigated for a series nuclear reactions with light projectiles with help of Isospin-Dependent Quantum Molecular Dynamics model. The…

Nuclear Theory · Physics 2008-11-26 Y. B. Wei , Y. G. Ma , W. Q. Shen , G. L. Ma , K. Wang , X. Z. Cai , C. Zhong , W. Guo , J. G. Chen , D. Q. Fang , W. D. Tian , X. F. Zhou

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

According to the Hugenholtz-Van Hove theorem, the nuclear symmetry energy $S(\rho)$ and its slope $L(\rho)$ at arbitrary densities can be decomposed in terms of the density and momentum dependence of the single-nucleon potentials in…

Nuclear Theory · Physics 2014-09-01 F. J. Fattoyev , W. G. Newton , Bao-An Li
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