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Related papers: Uranium on uranium collisions at relativistic ener…

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A Relativistic Transport Model (ART1.0) is applied to simulate the stopping effects in tip-tip and body-body U+U collisions, at a beam kinetic energy of 520 MeV/nucleon. Our simulation results have demonstrated that both central collisions…

Nuclear Experiment · Physics 2008-11-26 Xiao-Feng Luo , Xin Dong , Ming Shao , Ke-Jun Wu , Cheng Li , Hong-Fang Chen , Hu-Shan Xu

The Lanzhou Cooling-Storage-Ring facility is set to conduct experiments involving Uranium-Uranium collisions at the center of mass energies ranging from 2.12 to 2.4 GeV. Our investigation is focused on various bulk observables, which…

Nuclear Theory · Physics 2023-11-03 Aswini Kumar Sahoo , Xionghong He , Yasushi Nara , Subhash Singha

We calculate $p_T$ spectra and elliptic flow for tip-tip and body-body configurations of full overlap uranium-uranium (U+U) collisions using a hydrodynamic model with smooth initial density distribution and compare the results with those…

Nuclear Theory · Physics 2017-06-21 Pingal Dasgupta , Rupa Chatterjee , Dinesh K. Srivastava

Relativistic $^{238}$U+$^{238}$U collisions have recently been used to extract the quadrupole shape of $^{238}$U. In this study, we employ state-of-the-art three-dimensional (3D) lattice covariant density functional theory (CDFT) with…

Nuclear Theory · Physics 2026-02-03 Yuan Li , Hao-jie Xu , Dandan Zhang , Guo-Liang Ma

Effects of the collision geometry on experimental observables that are known to be sensitive to the high-density behavior of nuclear symmetry energy are examined in U+U collisions at 0.52 GeV/nucleon using an isospin- and momentum-dependent…

Nuclear Theory · Physics 2012-11-02 Jun Xu , Zachary Martinot , Bao-An Li

We examine entropy production in relativistic U+U collisions on the basis of a Color Glass Condensate (CGC) type picture as implemented in the Kharzeev-Levin-Nardi model (KLN). In this framework, we find that the peak entropy density…

Nuclear Theory · Physics 2009-10-09 Anthony Kuhlman , Ulrich W. Heinz , Yuri V. Kovchegov

A Multi-Phase Transport (AMPT) model is used to investigate the efficacy of several flow observables to constrain the initial-state deformation of the Uranium nuclei in U$+$U collisions at nucleon-nucleon center-of-mass energy…

Nuclear Theory · Physics 2024-03-04 Niseem Magdy

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…

Nuclear Theory · Physics 2023-01-18 Bo Gao , Yongjia Wang , Zepeng Gao , Qingfeng Li

How to select out those collisions with the desired geometry such as tip-tip and/or body-body in experiment is one key point for performing high energy UU collisions. With a relativistic transport model, we performed a simulation for…

Nuclear Theory · Physics 2008-11-20 K. J. Wu , F. Liu , N. Xu

Using a multi-phase transport (AMPT) model that includes the implementation of deformed Uranium nuclei, we have studied the centrality dependence of the charged particle multiplicity, <pT>, eccentricity (e2), triangularity (e3), their…

Nuclear Experiment · Physics 2015-06-03 Md. Rihan Haque , Zi-Wei Lin , Bedangadas Mohanty

UU collisions can provide about 30% larger densities compared to central PbPb ones. New aspect is generation of rather deformed initial states. We show that those can be effectively used to resolve a number of outstanding issues, from…

Nuclear Theory · Physics 2009-10-31 E. V. Shuryak

Using event-by-event viscous fluid dynamics to evolve fluctuating initial density profiles from the Monte-Carlo Glauber model for U+U collisions, we report a "knee"-like structure in the elliptic flow as a function of collision centrality,…

Nuclear Theory · Physics 2015-10-28 Andy Goldschmidt , Zhi Qiu , Chun Shen , Ulrich Heinz

Using event-by-event viscous fluid dynamics to evolve fluctuating initial density profiles from the Monte-Carlo Glauber model for U+U collisions, we report a "knee"-like structure in the elliptic flow as a function of collision centrality,…

Nuclear Theory · Physics 2015-02-03 Andy Goldschmidt , Zhi Qiu , Chun Shen , Ulrich Heinz

Using a relativistic transport (ART) model, we study the stopping power, the formation of superdense hadronic matter as well as the strength of transverse and radial flow in central Au+Au collisions at beam momentum from 2 to 12 GeV/c per…

Nuclear Theory · Physics 2009-10-30 Bao-An Li , C. M. Ko

Within a relativistic transport (ART) model for heavy-ion collisions, we show that the recently observed characteristic change from out-of-plane to in-plane elliptic flow of protons in mid-central Au+Au collisions as the incident energy…

Nuclear Theory · Physics 2009-10-31 Bao-An Li , C. M. Ko , Andrew T. Sustich , Bin Zhang

The shape and orientation of colliding nuclei play a crucial role in determining the initial conditions of the quark-gluon plasma (QGP), which influence key observables such as anisotropic and radial flow. In these proceedings, we present…

Nuclear Experiment · Physics 2025-10-06 Chunjian Zhang

Predictions of elliptic flow ($v_2$) and nuclear modification factor ($R_{AA}$) are provided as a function of centrality in U + U collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV. Since the $^{238}$U nucleus is naturally deformed, one could…

Nuclear Theory · Physics 2009-11-05 Hiroshi Masui , Bedangadas Mohanty , Nu Xu

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…

Nuclear Theory · Physics 2025-06-24 Yuan-Qing Guo , Ya-Peng Zhang , Zhao-Qing Feng

We study the generation and space-time evolution of fluid acceleration in heavy-ion collisions using AMPT and UrQMD transport models combined with a Gaussian smearing method. The peak proper acceleration reaches several hundred MeV, with…

Nuclear Theory · Physics 2026-04-02 Song-Ze Zhong , Xian-Gai Deng , Xu-Guang Huang , Yu-Gang Ma

It has been theorized that if heavy nuclei (e.g. Au, Pb) are collided at sufficiently high energies, we might be to recreate the conditions that existed in the universe a few microseconds after the Big Bang. The kinetic energy of the…

Nuclear Experiment · Physics 2007-07-18 Anuj K. Purwar
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