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相关论文: Probing the effect of different cross-sections in …

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In-medium nucleon-nucleon scattering cross sections are explored by comparing results of quantum molecular dynamics simulations to data on stopping and on elliptic and directed flow in intermediate-energy heavy-ion collisions. The…

核理论 · 物理学 2008-11-26 Yingxun Zhang , Zhuxia Li , Pawel Danielewicz

Heavy Ion Collisions (HIC) represent a unique tool to probe the in-medium nuclear interaction in regions away from saturation. In this report we present a selection of new reaction observables in dissipative collisions particularly…

核理论 · 物理学 2015-05-18 M. Di Toro , V. Baran , M. Colonna , V. Greco

The isoscaling behavior is investigated in the frame of Isospin dependent Quantum Molecular Dynamics (IQMD) models. The isotopic yields ratio $Y_2$/$Y_1$ for reactions $^{48}Ca$+$^{48}Ca$ and $^{40}Ca+^{40}Ca$ at different entrance channels…

The origin and dynamical evolution of isoscaling was studied using classical molecular dynamics simulations of ${}^{40}$Ca + ${}^{40}$Ca, ${}^{48}$Ca + ${}^{48}$Ca, and ${}^{52}$Ca + ${}^{52}$Ca, at beam energies ranging from $20 \ MeV/A$…

核理论 · 物理学 2009-11-11 C. O. Dorso , C. R. Escudero , M. Ison , J. A. López

Within the framework of the dinuclear system model, this study delves into the impact of various nuclear mass models on evaluating the fusion probability of superheavy nuclei. Nuclear mass models, as crucial inputs to the DNS model, exhibit…

核理论 · 物理学 2024-02-26 Chang Geng , Peng-Hui Chen , Fei Niu , Zu-Xing Yang , Xiang-Hua Zeng , Zhao-Qing Feng

The dependence of fusion cross section on the isotopic composition of colliding nuclei is analysed within the dinuclear system concept for compound nucleus formation. Probabilities of fusion and surviving probabilities, ingredients of the…

核理论 · 物理学 2009-10-31 G. G. Adamian , N. V. Antonenko , W. Scheid

We calculate the nuclear cross section for coherent and incoherent vector meson production within the QCD color dipole picture, including saturation effects. Theoretical estimates for scattering on both light and heavy nuclei are given over…

高能物理 - 唯象学 · 物理学 2009-08-26 V. P. Goncalves , M. S. Kugeratski , M. V. T. Machado , F. S. Navarra

The isospin-dependent quantum molecular dynamics (IDQMD) model is used to study the total reaction cross section $\sigma_R$. The energy-dependent Pauli volumes of neutrons and protons have been discussed and introduced into the IDQMD…

核理论 · 物理学 2009-11-10 Y. B. Wei , X. Z. Cai , W. Q. Shen , Y. G. Ma , H. Y. Zhang , C. Zhong , W. Guo , J. G. Chen , G. L. Ma , K. Wang

The detailed analysis of excitation function of elliptical flow by taking into account the nature of equation of state, nucleon-nucleon cross sections as well as momentum dependent interactions is performed within Quantum Molecular Dynamics…

核理论 · 物理学 2011-12-30 Sanjeev Kumar , Rajeev Chugh

We review the new possibilities offered by the reaction dynamics of asymmetric heavy ion collisions, using stable and unstable beams. We show that it represents a rather unique tool to probe regions of highly Asymmetric Nuclear Matter…

核理论 · 物理学 2009-09-29 V. Baran , M. Colonna , V. Greco , M. Di Toro

The short-range and tensor correlations associated to realistic nucleon-nucleon interactions induce a population of high-momentum components in the many-body nuclear wave function. We study the impact of such high-momentum components on…

核理论 · 物理学 2012-03-27 Arianna Carbone , Artur Polls , Arnau Rios

The enhancement of the sub-barrier fusion cross sections was explained as the lowering of the dynamical fusion barriers within the framework of the improved isospin-dependent quantum molecular dynamics (ImIQMD) model. The numbers of nucleon…

核理论 · 物理学 2009-09-11 Zhao-Qing Feng , Gen-Ming Jin

We present several possibilities offered by the reaction dynamics of dissipative heavy ion collisions to study in detail the symmetry term of the nuclear equation of state, $EOS$. In particular we discuss isospin effects on the nuclear…

核理论 · 物理学 2009-11-10 M. Di Toro , V. Baran , M. Colonna , A. Drago , T. Gaitanos , V. Greco , A Lavagno

The probability of the formation and decay of a dinuclear system is investigated for a wide range of relative orbital angular momentum values. The mass and angular distributions of the quasifission fragments are studied to understand the…

核理论 · 物理学 2016-01-20 Avazbek Nasirov , Bakhodir Kayumov , Yongseok Oh

We report the consequences of implementing momentum dependent interactions (MDI) on multifragmentation in heavy-ion reactions over entire collision geometry. The evolution of a single cold nucleus using static soft equation of state and…

核理论 · 物理学 2010-11-02 Yogesh K. Vermani , Supriya Goyal , Rajeev K. Puri

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…

核理论 · 物理学 2014-11-20 Yingxun Zhang , M. B. Tsang , Zhuxia Li , P. Danielewicz , W. G. Lynch , Xiaohua Lu

From an experimental point of view, clear signatures of multifragmentation have been detected by different experiments. On the other hand, from a theoretical point of view, many different models, built on the basis of totally different and…

核理论 · 物理学 2009-10-20 A. Ferrari , M. V. Garzelli , P. R. Sala

In asymmetric heavy ion collisions like dA or pA, particle production yields are different in the forward (d- or p-side) and backward (A-side) rapidity directions. The rapidity distribution reflects the geometry and phase-space distribution…

高能物理 - 唯象学 · 物理学 2008-07-23 G. G. Barnaföldi , A. Adeluyi , G. Fai , P. Lévai , G. Papp

We construct a formula for proton-nucleus total reaction cross section as a function of the mass and neutron excess of the target nucleus and the proton incident energy. We deduce the dependence of the cross section on the mass number and…

核理论 · 物理学 2008-11-26 Kei Iida , Akihisa Kohama , Kazuhiro Oyamatsu

The density dependence of the nuclear symmetry energy is inspected using the Statistical Multifragmentation Model with Skyrme effective interactions. The model consistently considers the expansion of the fragments' volumes at finite…

核理论 · 物理学 2009-10-29 S. R. Souza , M. B. Tsang , B. V. Carlson , R. Donangelo , W. G. Lynch , A. W. Steiner