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The elliptic, $v_2$, triangular, $v_3$, and quadrangular, $v_4$, azimuthal anisotropic flow coefficients are measured for unidentified charged particles, pions and (anti-)protons in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV with…

核实验 · 物理学 2016-06-24 ALICE Collaboration

We studied the relation between the initial geometry anisotropy and the anisotropic flow in a multiphase transport model (AMPT) for both Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV. It is found that unlike the elliptic flow…

核理论 · 物理学 2012-01-16 Kai Xiao , Na Li , Shusu Shi , Feng Liu

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…

核实验 · 物理学 2015-06-03 Md. Rihan Haque , Zi-Wei Lin , Bedangadas Mohanty

This paper studies the effect of anisotropy on sharp or diffuse interfaces models. When the surface tension is a convex function of the normal to the interface, the anisotropy is said to be weak. This usually ensures the lower…

偏微分方程分析 · 数学 2025-10-16 Jean-François Babadjian , Blanche Buet , Michael Goldman

High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the event-wise average transverse momentum ($P([p_{\mathrm{T}}])$).…

核实验 · 物理学 2025-03-14 ATLAS Collaboration

Anisotropic flows ($v_2$ and $v_4$) of hadrons and light nuclear clusters are studied by a partonic transport model and nucleonic transport model, respectively, in ultra-relativistic and intermediate energy heavy ion collisions. Both…

核理论 · 物理学 2008-11-26 Y. G. Ma

Many features of multiparticle production in ultra-relativistic nuclear collisions reflect the collision geometry and other collision characteristics determining the initial conditions. As the initial conditions affect to a different degree…

核实验 · 物理学 2015-06-03 Sergei A. Voloshin

The presence of $\alpha$-clustered structure in the light nuclei produces different exotic shapes in nuclear structure studies at low energies. Recent phenomenological studies suggest that collision of heavy nuclei with $\alpha$-clustered…

核理论 · 物理学 2023-06-02 Pingal Dasgupta , Rupa Chatterjee , Guo-Liang Ma

In this work, we present the particle ratios, transverse momentum spectra, and elliptic flow ($v_2$) of $\pi^\pm,k^\pm,$ $p$, and $\bar{p}$ in Au-Au collisions at $\sqrt{s_{NN}}=$ 62.4, 39.0, 27.0, 19.6 and 11.5 GeV using HYDJET++ model.…

高能物理 - 唯象学 · 物理学 2025-05-14 Satya Ranjan Nayak , Saraswati Pandey , B. K. Singh

We investigate the dependence of elliptic flows $v_2$ on transverse momentum $P_T$ for charged hadrons produced in nucleus-nucleus collisions at high energy by using a multi-source ideal gas model which includes the interaction contribution…

核理论 · 物理学 2015-09-29 Bao-Chun Li , Yuan-Yuan Fu , Er-Qin Wang , Fu-Hu Liu

We study symmetric and asymmetric cumulants as well as rapidity-even dipolar flow in ${}^{16}$O+${}^{16}$O collisions at $\sqrt{s_{NN}} = 200$~GeV to explore $\alpha$-clustering phenomena in light nuclei within the viscous relativistic…

核理论 · 物理学 2026-02-10 Kaiser Shafi , Sandeep Chatterjee

One important challenge in our field is to understand the initial condition of the QGP and constrain it using sensitive experimental observables. Recent studies show that the Pearson Correlation Coefficient between ${\bm V}_n$ and…

核实验 · 物理学 2022-10-04 Somadutta Bhatta

The elliptic flow in collisions of neutron-rich heavy-ion systems at intermediate energies emerges as an observable sensitive to the strength of the symmetry energy at supra-saturation densities. First results obtained by comparing ratios…

核实验 · 物理学 2014-02-06 W. Trautmann , H. H. Wolter

Using an anomalous transport model for massless quarks and antiquarks, we study the effect of a magnetic field on the elliptic flows of quarks and antiquarks in relativistic heavy ion collisions. With initial conditions from a blast wave…

核理论 · 物理学 2016-10-19 Yifeng Sun , Che-Ming Ko , Feng Li

Relativistic heavy ion collisions provide a unique opportunity to study the shape of colliding nuclei, even up to higher-order multiple deformations. In this work, several observables that are sensitive to quadrupole and hexadecapole…

核理论 · 物理学 2024-08-29 Zaining Wang , Jinhui Chen , Hao-jie Xu , Jie Zhao

Elliptical energy flow patterns in non-central Au(11.7AGeV) on Au reactions have been studied employing the RQMD model. The strength of these azimuthal asymmetries is calculated comparing the results in two different modes of RQMD (mean…

核理论 · 物理学 2009-10-30 H. Sorge

Transport and Langevin equations are employed to study hadronic medium effects on charmonium elliptic flows in heavy-ion collisions. In Pb-Pb collisions, the anisotropic energy density of the quark-gluon plasma (QGP) in the transverse plane…

核理论 · 物理学 2021-06-28 Baoyi Chen , Liu Jiang , Yunpeng Liu

Magnetic anisotropy is a key parameter to describe the exchange bias effect in heterostructures. In this paper, we describe explicit density functional calculations of the magnetic structure of an interface between the industrially…

材料科学 · 物理学 2025-09-03 Robert A. Lawrence , Matt I. J. Probert

The hydrodynamic flow-like behavior of charged hadrons in high-energy lead-lead collisions is studied through multiparticle correlations. The elliptic anisotropy values based on different orders of multiparticle cumulants, $v_{2}\{2k\}$,…

核实验 · 物理学 2024-02-20 CMS Collaboration

The effect of projectile shape on cross sections and momentum distributions of fragments from heavy ion reactions is studied. We propose a new approach that implements the underlying symmetries of each isotope with a few parameters directly…

核理论 · 物理学 2007-05-23 S. E. Chernyshev , K. V. Shitikova