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Related papers: Exploring the partonic collectivity in small syste…

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Using a (2+1)-d viscous hydrodynamical model, we study the dependence of flow observables on the collision energy ranging from sqrt(s)=7.7 A GeV at the Relativistic Heavy Ion Collider (RHIC) to sqrt(s)=2760 A GeV at the Large Hadron…

Nuclear Theory · Physics 2012-10-08 Chun Shen , Ulrich Heinz

We estimate the amount of collective "elliptic flow" expected at mid-rapidity in proton-proton (p-p) collisions at the CERN Large Hadron Collider (LHC), assuming that any possible azimuthal anisotropy of the produced hadrons with respect to…

High Energy Physics - Phenomenology · Physics 2011-09-28 D. d'Enterria , G. Kh. Eyyubova , V. L. Korotkikh , I. P. Lokhtin , S. V. Petrushanko , L. I. Sarycheva , A. M. Snigirev

I compare the first viscous hydrodynamic prediction for integrated elliptic flow in Pb-Pb collisions at the LHC with the first data released by the ALICE collaboration. These new data are found to be consistent with hydrodynamic…

Nuclear Theory · Physics 2011-04-22 Matthew Luzum

We have previously predicted multiplicities and transverse momentum spectra of hadrons for the most central LHC Pb+Pb collisions at $\sqrt{s_{NN}}=5.5$ TeV using initial state for hydrodynamic evolution from pQCD + final state saturation…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. J. Eskola , H. Niemi , P. V. Ruuskanen

Within the framework of the coalescence model based on the phase-space distributions of protons and neutrons generated from the {{\tt iEBE-VISHNU}} hybrid model with {{\tt AMPT}} initial conditions, we study the spectra and elliptic flow of…

Nuclear Theory · Physics 2018-11-28 Wenbin Zhao , Lilin Zhu , Hua Zheng , Che Ming Ko , Huichao Song

We report on the elliptic and triangular flow measurements for a number of hadrons including charged pions, and (anti-)protons, as well as those with strangeness content: kaons, ${\rm \phi}$-meson, ${\rm K^0_s}$, ${\rm…

Nuclear Experiment · Physics 2019-08-15 Francesco Noferini

We show that hadronization via quark coalescence enhances hadron elliptic flow at large pT relative to that of partons at the same transverse momentum. Therefore, compared to earlier results based on covariant parton transport theory, more…

Nuclear Theory · Physics 2009-11-10 Denes Molnar , Sergei A. Voloshin

The striking resemblance of high multiplicity proton-proton (pp) collisions at the LHC to heavy ion collisions challenges our conventional wisdom on the formation of the Quark-Gluon Plasma (QGP). A consistent explanation of the collectivity…

High Energy Physics - Phenomenology · Physics 2021-08-30 Liang Zheng , Guang-Hui Zhang , Yun-Fan Liu , Zi-Wei Lin , Qi-Ye Shou , Zhong-Bao Yin

We present the first full (3+1)D dynamical simulations of ultra-peripheral Pb+Pb collisions at the Large Hadron Collider. Extrapolating from p+Pb collisions, we explore whether a quasi-real photon $\gamma^*$ interacting with the lead…

Nuclear Theory · Physics 2022-12-28 Wenbin Zhao , Chun Shen , Björn Schenke

Fully dynamic simulations of heavy ion collisions at RHIC and at LHC energies within the perturbative QCD-based partonic transport model BAMPS (Boltzmann Approach to Multi-Parton Scatterings) are presented, focusing on the simultaneous…

High Energy Physics - Phenomenology · Physics 2015-05-28 Oliver Fochler , Jan Uphoff , Zhe Xu , Carsten Greiner

We review the signatures for the soft collective dynamics in highest-multiplicity ultrarelativistic p-Pb collisions and show that the effects are well described in a three-stage model, consisting of the event-by-event Glauber initial…

Nuclear Theory · Physics 2013-12-02 Wojciech Broniowski , Piotr Bozek

It is shown that a simultaneous comparison of both elliptic and triangular flow from (2+1)-dimensional viscous fluid dynamics with recent measurements in Pb+Pb collisions at the Large Hadron Collider (LHC) favors a small specific shear…

Nuclear Theory · Physics 2012-10-08 Zhi Qiu , Chun Shen , Ulrich W. Heinz

In this paper, we investigate the hydrodynamic collectivity in proton--proton (pp) collisions at 13 TeV, using iEBE-VISHNU hybrid model with HIJING initial conditions. With properly tuned parameters, our model simulations can remarkably…

Nuclear Theory · Physics 2018-04-24 Wenbin Zhao , You Zhou , Hao-jie Xu , Weitian Deng , Huichao Song

Collisions of protons with lead nuclei (pPb), such as those measured by the LHCb experiment, provide a unique environment to study the surprising emergence of collective, fluid-like phenomena in small systems. A key signature of this…

High Energy Physics - Phenomenology · Physics 2025-10-28 Oleh Savchuk

Using the (2+1)-dimensional ultrarelativistic viscous hydrodynamics+hadron cascade, VISHNU, hybrid model, we study the $p_{\rm T}$-spectra and elliptic flow of $\Lambda$, $\Xi$, and $\Omega$ in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV…

Nuclear Theory · Physics 2016-08-16 Xiangrong Zhu

Elliptic flow of deuterons is measured on simulated collisions events of Pb+Pb at CMS energy of 2.76 TeV per colliding nucleon pair. We use hybrid model that includes hydrodynamics for the deconfined phase and hadron transport as an…

Nuclear Theory · Physics 2026-03-10 Tomas Polednicek , Radka Vozabova , Boris Tomasik

The dynamics of partons, hadrons and strings in relativistic nucleus-nucleus collisions is analyzed within the novel Parton-Hadron-String Dynamics (PHSD) transport approach, which is based on a dynamical quasiparticle model for partons…

Nuclear Theory · Physics 2015-06-04 E. L. Bratkovskaya , V. P. Konchakovski , V. Voronyuk , V. D. Toneev , O. Linnyk , W. Cassing

Collectivity, as interpreted to mean flow of a dense medium in high-energy A-A collisions described by hydrodynamics, has been attributed to smaller collision systems -- p-A and even p-p collisions -- based on recent analysis of LHC data.…

High Energy Physics - Phenomenology · Physics 2018-03-14 Thomas A. Trainor

A generalization of the phenomenological blast-wave-Tsallis-power model, recently proposed by the author for the hadrons transverse momentum ($p_\textrm{T}$) spectra measured at the LHC, is developed to also describe the hadrons…

High Energy Physics - Phenomenology · Physics 2026-01-12 Smbat Grigoryan

To study the microscopic structure of quark-gluon plasma, data from hadronic collisions must be confronted with models that go beyond fluid dynamics. Here, we study a simple kinetic theory model that encompasses fluid dynamics but contains…

High Energy Physics - Phenomenology · Physics 2020-01-08 Aleksi Kurkela , Urs Achim Wiedemann , Bin Wu