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

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The understanding of heavy ion collisions and its quark-gluon plasma formation requires a complicated interplay of rich physics in a wealth of experimental data. In this work we compare for identified particles the transverse momentum…

核理论 · 物理学 2021-05-26 Govert Nijs , Wilke van der Schee , Umut Gürsoy , Raimond Snellings

Results on high transverse momentum charged particle emission with respect to the reaction plane are presented for Au+Au collisions at $\sqrt{s_{_{NN}}}$= 200 GeV. Two- and four-particle correlations results are presented as well as a…

核实验 · 物理学 2012-08-27 STAR Collaboration

A foundational question in relativistic fluid mechanics concerns the properties of the hydrodynamic gradient expansion at large orders. We establish the precise conditions under which this gradient expansion diverges for a broad class of…

高能物理 - 理论 · 物理学 2021-09-08 Michal P. Heller , Alexandre Serantes , Michał Spaliński , Viktor Svensson , Benjamin Withers

Azimuthal anisotropies of reconstructed jets [$v_{n}^{jet} (n=2, 3)$] have been investigated in Pb+Pb collisions at the center of mass energy $\sqrt{s_{_{\rm NN}}}$ = 2.76 TeV within a framework of a multiphase transport (AMPT) model. The…

核理论 · 物理学 2014-07-29 Mao-Wu Nie , Guo-Liang Ma

The kinetic theory is formulated with respect to anholonomic frames of reference on curved spacetimes. By using the concept of nonlinear connection we develop an approach to modelling locally anisotropic kinetic processes and, in…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Sergiu I. Vacaru

By assuming the existing of memory effects and long-range interactions in the hot and dense matter produced in high energy heavy ion collisions, the nonextensive statistics together with the relativistic hydrodynamics including phase…

核理论 · 物理学 2017-11-08 Jia-Qi Hui , Zhi-Jin Jiang , Dong-Fang Xu

We present a complete formulation of second-order (2+1)-dimensional anisotropic hydrodynamics. The resulting framework generalizes leading-order anisotropic hydrodynamics by allowing for deviations of the one-particle distribution function…

核理论 · 物理学 2014-11-26 Dennis Bazow , Ulrich W. Heinz , Michael Strickland

The azimuthal anisotropy of charged particles in PbPb collisions at nucleon-nucleon center-of-mass energy of 2.76 TeV is measured with the CMS detector at the LHC over an extended transverse momentum (pt) range up to approximately 60 GeV.…

核实验 · 物理学 2013-03-21 CMS Collaboration

It has long been debated whether the hydrodynamics is suitable for the smaller colliding systems such as p+p collisions. In this paper, by assuming the existence of longitudinal collective motion and long-range interactions in the hot and…

核理论 · 物理学 2018-12-05 Jiaqi Hui , Zhijin Jiang

In this proceedings contribution I review recent progress in our understanding of the bulk dynamics of relativistic systems that possess potentially large local rest frame momentum-space anisotropies. In order to deal with these…

核理论 · 物理学 2014-06-17 Michael Strickland

Flow signatures in experimental data from relativistic ion collisions are usually interpreted as a fingerprint of the presence of a hydrodynamic phase during the evolution of these systems. In this work, flow signatures arising from…

核理论 · 物理学 2015-10-28 Paul Romatschke

We have developed a relativistic transport approach at fixed $\eta/s(T)$ that incorporates initial space fluctuations generated by wounded quark model to study the hadron observables in 5.02 TeV p+Pb collisions. We find that our approach is…

核理论 · 物理学 2020-01-29 Yifeng Sun , Salvatore Plumari , Vincenzo Greco

Non-ideal fluids are generally subject to the occurrence of non-isotropic pressure tensors, whose determination is fundamental in order to characterize their dynamical and thermodynamical properties. This requires the implementation of…

等离子体物理 · 物理学 2023-06-22 Claudio Cremaschini , Jiří Kovář , Zdeněk Stuchlík , Massimo Tessarotto

Nonintegrability plays a crucial role in thermalization and transport processes in many-body Hamiltonian systems, yet its quantitative effects remain unclear. To reveal the connection between the macroscopic relaxation properties and the…

统计力学 · 物理学 2023-10-20 Weicheng Fu , Zhen Wang , Yisen Wang , Yong Zhang , Hong Zhao

The analysis of two-particle azimuthal correlation function in p+p and Au+Au collisions at s(NN)**(1/2) 200 GeV/c is presented. The mean jet fragmentation transverse momentum <|mjTy|> and mean parton transverse momentum <|kTy|> are inferred…

核实验 · 物理学 2009-09-29 PHENIX collaboration , J. Rak

We analyse near-extremal black brane configurations in asymptotically $\mathrm{AdS}_4$ spacetime with the temperature $T$, chemical potential $\mu$, and three-velocity $u^\nu$, varying slowly. We consider a low-temperature limit where the…

高能物理 - 理论 · 物理学 2021-02-26 Upamanyu Moitra , Sunil Kumar Sake , Sandip P. Trivedi

The field theoretic renormalization group and the operator product expansion are applied to the model of passive vector (magnetic) field advected by a random turbulent velocity field. The latter is governed by the Navier--Stokes equation…

统计力学 · 物理学 2015-12-01 N. V. Antonov , M. M. Kostenko

We establish the anisotropic hydrodynamics (aHydro) equations based on a boost-non-invariant longitudinally expanding system. Good consistency is found in the comparison between the aHydro results with those from the Boltzmann equation…

核理论 · 物理学 2024-10-01 Shile Chen , Shuzhe Shi

Hydrodynamic description requires a local thermodynamic equilibrium of the system under study but an approximate hydrodynamic behaviour is already manifested when a momentum distribution of liquid components is not of equilibrium form but…

高能物理 - 唯象学 · 物理学 2009-11-11 Stanislaw Mrowczynski

Dissipative relativistic fluid-dynamical descriptions of the extended fireball formed in high-energy heavy-ion collisions are quite successful, yet require a prescription for converting the fluid into particles. We present arguments in…

核理论 · 物理学 2015-06-02 Nicolas Borghini , Steffen Feld , Christian Lang