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相关论文: Azimuthal Anisotropies at High Momentum from Purel…

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Following the recent success of anisotropic hydrodynamics we propose a new, general prescription for the hydrodynamics expansion around an anisotropic background. The anisotropic distribution is fixing exactly the complete energy-momentum…

高能物理 - 唯象学 · 物理学 2016-10-12 Leonardo Tinti

It is argued that the observation of anisotropic azimuthal distribution of final state particles alone is insufficient to show whether the formed matter at RHIC behaves like hydrodynamic flow. Examining the intrinsic interaction (or…

核理论 · 物理学 2008-04-21 Wang Meijuan , Liu Lianshou , Wu Yuanfang

The observation of large azimuthal anisotropies $v_n$ in the particle spectra of proton-proton (pp) and proton-nucleus (pA) collisions challenges fluid dynamic interpretations of $v_n$, as it remains unclear how small collision systems can…

高能物理 - 唯象学 · 物理学 2019-09-25 Aleksi Kurkela , Urs Achim Wiedemann , Bin Wu

We demonstrate experimentally that the long-range hydrodynamic interactions in an incompressible quasi 2D isotropic fluid result in an anisotropic viscous drag acting on elongated particles. The anisotropy of the drag is increasing with…

流体动力学 · 物理学 2017-12-27 Christoph Klopp , Ralf Stannarius , Alexey Eremin

We report the first results of elliptic ($v_2$), triangular ($v_3$) and quadrangular flow ($v_4$) of charged particles in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV with the ALICE detector at the CERN Large Hadron Collider. The…

核实验 · 物理学 2016-12-13 ALICE Collaboration

We investigate a (3+1)-dimensional hydrodynamic expansion of the hot and dense system created in head-on collisions of Pb+Pb/Au+Au at beam energies from $5-200A$ GeV. An equation of state that incorporates a critical end point (CEP) in line…

核理论 · 物理学 2008-11-26 J. Steinheimer , M. Bleicher , H. Petersen , S. Schramm , H. Stocker , D. Zschiesche

A second order relativistic hydrodynamic theory has been derived using momentum dependent relaxation time in the relativistic transport equation. In order to do that, an iterative technique of gradient expansion approach, namely…

核理论 · 物理学 2021-02-03 Sukanya Mitra

Employing a kinetic framework, we calculate all transport coefficients for relativistic dissipative (second-order) hydrodynamics for arbitrary particle masses in the 14-moment approximation. Taking the non-relativistic limit, it is shown…

核理论 · 物理学 2025-05-07 Semyon Potesnov , David Wagner

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

Within hydrodynamics we study the effects of the initial spatial anisotropy in non-central heavy-ion collisions on the momentum distributions of the emitted hadrons. We show that the elliptic flow measured at midrapidity in 158 A GeV/c…

核理论 · 物理学 2009-10-09 Peter F. Kolb , Josef Sollfrank , Ulrich Heinz

Anomalous hydrodynamics is a low-energy effective theory that captures effects of quantum anomalies. We develop a numerical code of anomalous hydrodynamics and apply it to dynamics of heavy-ion collisions, where anomalous transports are…

核理论 · 物理学 2018-02-01 Masaru Hongo , Yuji Hirono , Tetsufumi Hirano

Transverse spherocity is an event shape observable having a very unique capability to separate the events based on their geometrical shapes. Recent results from experiments at the LHC suggest that transverse spherocity is an important event…

高能物理 - 唯象学 · 物理学 2021-04-05 Neelkamal Mallick , Raghunath Sahoo , Sushanta Tripathy , Antonio Ortiz

This paper presents $v_{4}/v_{2}^2$ ratio as a function of transverse momentum ($p_{t}$), pseudorapidity ($\eta$) and collision centrality in Au+Au collisions at $\sqrt{s_{NN}} = 200$ GeV using the STAR detector at the Relativistic Heavy…

核实验 · 物理学 2009-11-11 A. H. Tang

In high energy collisions of heavy-ions, experimental findings of collective flow are customarily associated with the presence of a thermalized medium expanding according to the laws of hydrodynamics. Recently, the ATLAS, CMS and ALICE…

核理论 · 物理学 2016-08-24 M. Habich , G. A. Miller , P. Romatschke , W. Xiang

A recently developed framework of highly-anisotropic and strongly-dissipative hydrodynamics -- ADHYDRO -- has been introduced and used to analyze the space-time evolution of matter produced in ultra-relativistic heavy-ion collisions. The…

核理论 · 物理学 2012-07-04 Radoslaw Ryblewski

Wave turbulence is the study of the long-time statistical behaviour of equations describing a set of weakly non-linear interacting waves. Such a theory, which has a natural asymptotic closure, allows us to probe the nature of turbulence…

流体动力学 · 物理学 2023-10-24 Sebastien Galtier

A self-consistent nonlinear hydrodynamic theory is presented of the propagation of a long and thin relativistic electron beam, for a typical plasma wake field acceleration configuration in an unmagnetized and overdense plasma. The random…

等离子体物理 · 物理学 2017-12-06 Dušan Jovanović , Renato Fedele , Sergio De Nicola , Tamina Akhter , Milivoj Belić

A spatially-periodic longitudinal wave is considered in relativistic dissipative hydrodynamics. At sufficiently small wave amplitudes, an analytic solution is obtained in the linearised limit of the macroscopic conservation equations within…

流体动力学 · 物理学 2018-03-07 Victor E. Ambrus

In this work we describe the dynamics of a highly anisotropic system undergoing boost-invariant longitudinal and azimuthally symmetric radial expansion (Gubser flow) for arbitrary shear viscosity to entropy density ratio. We derive the…

核理论 · 物理学 2018-03-14 M. Martinez , M. McNelis , U. Heinz

An increasing number of low carrier density materials exhibit a surprisingly large transport mean free path due to inefficient momentum relaxation. Consequently, charge transport in these systems is markedly non-ohmic but rather ballistic…

介观与纳米尺度物理 · 物理学 2020-03-10 Tobias Holder , Raquel Queiroz , Thomas Scaffidi , Navot Silberstein , Asaf Rozen , Joseph A. Sulpizio , Lior Ella , Shahal Ilani , Ady Stern