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相关论文: Pion production in intermediate-energy heavy-ion c…

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Within the newly updated version of the ultrarelativistic quantum molecular dynamics (UrQMD) model, the transverse-velocity dependence of the elliptic flow of free nucleons from $^{197}$Au+$^{197}$Au collisions at the incident energy 400…

核理论 · 物理学 2015-06-19 Yongjia Wang , Chenchen Guo , Qingfeng Li , Hongfei Zhang , Y. Leifels , W. Trautmann

Within the framework of the Lanzhou quantum molecular dynamics (LQMD) transport model, pion dynamics in heavy-ion collisions near threshold energies and the emission of preequilibrium particles (nucleons and light complex fragments) have…

核理论 · 物理学 2017-02-16 Zhao-Qing Feng

In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, effect of the momentum dependence of nuclear symmetry potential on nuclear transverse and elliptic flows in the neutron-rich reaction…

核理论 · 物理学 2015-06-04 Lei Zhang , Yuan Gao , Yun Du , Guang-Hua Zuo , Gao-Chan Yong

Transverse emission of preequilibrium nucleons, light clusters (complex particles) and charged pions from the isotopic $^{112,124}$Sn+$^{112,124}$Sn reactions at a beam energy of 400\emph{A} MeV, to extract the high-density behavior of…

核理论 · 物理学 2015-06-03 Zhao-Qing Feng

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

Flow observables in heavy-ion reactions at incident energies up to about 1 GeV per nucleon have been shown to be very useful for investigating the reaction dynamics and for determining the parameters of reaction models based on transport…

核实验 · 物理学 2014-03-25 P. Russotto , M. D. Cozma , A. Le Fevre , Y. Leifels , R. Lemmon , Q. Li , J. Lukasik , W. Trautmann

The inclusive spectra of preequilibrium nucleons produced in low-energy antiproton-nucleus collisions are thoroughly investigated within the framework of the Lanzhou quantum molecular dynamics model for the first time. All possible reaction…

核理论 · 物理学 2017-09-20 Zhao-Qing Feng

The double neutron-proton differential transverse flowtaken from two reaction systems using different isotopes of the same element is studied at incident beam energies of 400 and 800 MeV/nucleon within the framework of an isospin- and…

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

Within the framework of Lanzhou quantum molecular dynamics transport model, the correlation of initial deformation and isospin diffusion is systematically investigated in collisions of $^{238}$U + $^{238}$U. The impacts of the collision…

核理论 · 物理学 2025-06-24 Yuan-Qing Guo , Ya-Peng Zhang , Zhao-Qing Feng

Within the framework of the Lanzhou quantum molecular dynamics model, the deep subthreshold antiproton production in heavy-ion collisions has been investigated thoroughly. The elastic scattering, annihilation and charge exchange reactions…

核理论 · 物理学 2020-02-19 Zhao-Qing Feng

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…

核理论 · 物理学 2009-11-07 Bao-An Li , Andrew T. Sustich , Bin Zhang

A systematic study of the $\pi^-/\pi^+$ ratio in heavy-ion collisions with the same neutron/proton ratio but different masses can help single out effects of the nuclear mean field on pion production. Based on simulations using the IBUU04…

核理论 · 物理学 2009-11-06 Ming Zhang , Zhi-Gang Xiao , Bao-An Li , Lie-Wen Chen , Gao-Chan Yong , Sheng-Jiang Zhu

The elliptic flow of neutrons, protons and light complex particles in reactions of neutron-rich systems at relativistic energies is proposed as an observable sensitive to the strength of the symmetry term in the equation of state at…

Using an isospin- and momentum-dependent transport model we study the emission of free nucleons and the nuclear radial flow in central heavy-ion collisions induced by high energy radioactive beams. The midrapidity neutron/proton ratio and…

核理论 · 物理学 2008-11-26 Bao-An Li , Gao-Chan Yong , Wei Zuo

The double neutron/proton ratio of nucleon emissions taken from two reaction systems using four isotopes of the same element, namely, the neutron/proton ratio in the neutron-rich system over that in the more symmetric system, has the…

核理论 · 物理学 2009-11-11 Bao-An Li , Lie-Wen Chen , Gao-Chan Yong , Wei Zuo

The elliptic flow (squeeze-out) of neutrons, protons and light complex particles in reactions of neutron-rich systems at relativistic energies is proposed as an observable sensitive to the strength of the symmetry term in the equation of…

Midrapidity nucleon elliptic flow is studied within the Boltzmann-equation simulations of symmetric heavy-ion collisions. The simulations follow a lattice Hamiltonian extended to relativistic transport. It is demonstrated that in the…

核理论 · 物理学 2009-10-31 P. Danielewicz

Neutron-proton elliptic flow difference and ratio have been shown to be promising observables in the attempt to constrain the density dependence of the symmetry energy above the saturation point from heavy-ion collision data. Their…

核理论 · 物理学 2014-02-06 M. D. Cozma , Y. Leifels , W. Trautmann , Q. Li , P. Russotto

The Ultra-relativistic Quantum Molecular Dynamics model is employed to simulate $\pi^-+\mathrm{C}$ and $\pi^-+\mathrm{W}$ collisions at p$_\mathrm{lab}=1.7$ GeV motivated by the recent HADES results. By comparing the proton and $\Lambda$…

Within the ultrarelativistic quantum molecular dynamics (UrQMD) model, by reverse tracing nucleons that are finally emitted at mid-rapidity (|$y_0$| < 0.1) in the entire reaction process, the time evolution of elliptic flow ($v_2$) of these…

核理论 · 物理学 2023-01-18 Bo Gao , Yongjia Wang , Zepeng Gao , Qingfeng Li
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