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Related papers: Elliptic Anisotropy from Quantum Diffraction

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Observations and modelling suggest that the fluctuations in magnetised plasmas exhibit scale-dependent anisotropy, with more energy in the fluctuations perpendicular to the mean magnetic field than in the parallel fluctuations and the…

Solar and Stellar Astrophysics · Physics 2013-04-22 T. Laitinen , S. Dalla , J. Kelly , M. Marsh

Azimuthal anisotropy scaling functions for identified mesons and baryons are analyzed in large (Pb+Pb at $\sqrt{s_{NN}} = 2.76$ and 5.02 TeV, Au+Au at $\sqrt{s_{NN}} = 200$ GeV), intermediate (Cu+Cu at $\sqrt{s_{NN}} = 200$~GeV), and small…

High Energy Physics - Experiment · Physics 2025-09-12 Roy A. Lacey

The mechanism for generating directed and elliptic flow in heavy-ion collisions is investigated and quantified for the SIS18 and SIS100 energy regimes. The observed negative elliptic flow $v_2$, at midrapidity has been explained either via…

Nuclear Theory · Physics 2024-11-21 Tom Reichert , Jörg Aichelin

We examine energy transport in an ensemble of closed quantum systems driven by stochastic perturbations. One can show that the probability and energy fluxes can be described in terms of quantum advection modes (QAM) associated with the…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 G. A. Levin , W. A. Jones , K. Walczak , K. L. Yerkes

We show effects of granular structure of the initial conditions (IC) of hydrodynamic description of high-energy nucleus-nucleus collisions on some observables, especially on the elliptic-flow parameter v2. Such a structure enhances…

High Energy Physics - Phenomenology · Physics 2009-05-12 R. P. G. Andrade , F. Grassi , Y. Hama , T. Kodama , W. L. Qian

Low-dimensional excitonic materials have inspired much interest owing to their novel physical and technological prospects. In particular, those with strong in-plane anisotropy are among the most intriguing but short of general analyses. We…

Mesoscale and Nanoscale Physics · Physics 2021-07-28 Chern Chuang , Jianshu Cao

It is always some constraint that yields any nontrivial structure from statistical averages. As epitomized by the Boltzmann distribution, the energy conservation is often the principal constraint acting on mechanical systems. Here, we…

Statistics Theory · Mathematics 2016-07-06 Naoki Sato , Zensho Yoshida

On a dense energy grid reaching up to 75 meV electron collision energy the fragmentation angle and the kinetic energy release of neutral dissociative recombination fragments have been studied in a twin merged beam experiment. The anisotropy…

We present a systematic overview of granular deposits composed of ellipsoidal particles with different particle shapes and size polydispersities. We study the density and anisotropy of such deposits as functions of size polydispersity and…

Soft Condensed Matter · Physics 2015-05-30 Reza M. Baram , Pedro G. Lind

Application of integral equation theory to complex fluids is reviewed, with particular emphasis to the effects of polydispersity and anisotropy on their structural and thermodynamic properties. Both analytical and numerical solutions of…

Soft Condensed Matter · Physics 2011-12-23 Domenico Gazzillo , Achille Giacometti

We explore the system size dependence of heavy-quark-QGP interaction by studying the heavy flavor meson suppression and elliptic flow in Pb-Pb, Xe-Xe, Ar-Ar and O-O collisions at the LHC. The space-time evolution of the QGP is simulated…

High Energy Physics - Phenomenology · Physics 2021-12-08 Shu-Qing Li , Wen-Jing Xing , Xiang-Yu Wu , Shanshan Cao , Guang-You Qin

Planck-scale quantum spacetime undergoes probabilistic local curvature fluctuations whose distributions cannot explicitly depend on position otherwise vacuum's small-scale quantum structure would fail to be statistically homogeneous. Since…

High Energy Physics - Theory · Physics 2012-03-28 Christopher D. Burton

The centrality dependence of elliptic flow and how it is related to the physics of expansion of the system created in high energy nuclear collisions is discussed. Since in the hydro limit the centrality dependence of elliptic flow is mostly…

Nuclear Theory · Physics 2009-10-31 S. A. Voloshin , A. M. Poskanzer

The microscopic origin of dissipation of a driven quantum many body system is addressed in the framework of a parametric banded random matrix approach. We find noticeable violations of the fluctuation-dissipation theorem and we observe also…

Nuclear Theory · Physics 2015-06-26 A. Bulgac , G. Do Dang , D. Kusnezov

Hypothesis: Colloidal molecules with anisotropic shapes and interactions are powerful model systems for deciphering the behavior of real molecules and building units for creating materials with designed properties. While many strategies for…

Soft Condensed Matter · Physics 2022-07-19 Yogesh Shelke , Susana Marín-Aguilar , Fabrizio Camerin , Marjolein Dijkstra , Daniela J. Kraft

Azimuthal and polar angle distributions of particles produced in heavy ion collisions carry important information about the early state of the system and the evolution of the Quark Gluon Plasma. The pixelization code HEALPix was created by…

Nuclear Theory · Physics 2021-12-24 Hannah Anderson , Shengquan Tuo

Determination of the high density behavior of the symmetry energy through the simultaneous measurement of elliptic flow excitation functions of neutrons, protons and light clusters is proposed. The elliptic flow developed in relativistic…

Understanding how momentum anisotropies arise in small collision systems is important for a quantitative understanding of collectivity in terms of QCD dynamics in small and large collision systems. In this letter we present results for…

High Energy Physics - Phenomenology · Physics 2024-08-12 Robin Törnkvist , Korinna Zapp

Energy loss in anisotropic hot dense QGP in external magnetic field is studied within holographic approach. Energy loss is calculated by estimation of behaviour of the spatial Wilson loops using the effective potential technique. We examine…

High Energy Physics - Theory · Physics 2020-12-11 Irina Ya. Aref'eva , Kristina Rannu , Pavel Slepov

We compute analytically the anisotropic flow in an expanding mixture of several species of relativistic massive particles. We find that a single collision per particle in average already leads to sizable elliptic flow, with mass ordering…

Nuclear Theory · Physics 2015-03-17 Nicolas Borghini , Clement Gombeaud