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Improved Fluid Dynamics for Relativistic Heavy Ion Collisions

Total Cost €


EC-Contrib. €






Project "IMFDforHIC" data sheet

The following table provides information about the project.


Organization address
postcode: 60323

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website
 Total cost 159˙460 €
 EC max contribution 159˙460 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-01-01   to  2017-12-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

One of the fundamental questions in the field of high-energy physics is what are the properties of strongly interacting matter at high temperature or density, when one expects a transition from hadronic degrees of freedom to deconfined matter, quark-gluon plasma (QGP), where the degrees of freedom are quarks and gluons.

Experimentally such matter can be studied in relativistic heavy-ion collisions, and there are currently two major collider experiments, the Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) and the Large Hadron Collider (LHC) at CERN, performing such studies. Currently, there are strong indications that a small droplet of nearly thermalized QGP is indeed formed in these collisions. Extracting the properties of the matter from experimental data is, however, challenging, and requires a good understanding of the dynamical evolution of the system. With the present computational techniques it is not possible to solve the evolution directly from the theory of strong interactions, QCD, but phenomenological models are needed to describe the evolution, and determine how the properties of the matter are reflected in the experimental observables.

In order to reliably extract the properties of the formed matter, it is essential that the models describe simultaneously as many experimental observables as possible. Furthermore, it is important that the validity of the theoretical models and uncertainties associated with the used approximations and input parameters are properly addressed. The main goals of the proposed research are: (i) reduce and quantify the uncertainties in the modeling of the spacetime evolution of the system formed in the collisions, and (ii) find constraints for the unknown properties of strongly interacting matter from the currently available experimental data.


year authors and title journal last update
List of publications.
2017 K.J. Eskola, H. Niemi, R. Paatelainen, K. Tuominen
Latest results from the EbyE NLO EKRT model
published pages: 313-316, ISSN: 0375-9474, DOI: 10.1016/j.nuclphysa.2017.04.038
Nuclear Physics A 967 2019-06-13
2017 Yasushi Nara, Harri Niemi, Jan Steinheimer, Horst Stöcker
Equation of state dependence of directed flow in a microscopic transport model
published pages: 543-548, ISSN: 0370-2693, DOI: 10.1016/j.physletb.2017.02.020
Physics Letters B 769 2019-06-13
2017 H. Niemi, E. Molnár, D.H. Rischke
The right choice of moment for anisotropic fluid dynamics
published pages: 409-412, ISSN: 0375-9474, DOI: 10.1016/j.nuclphysa.2017.05.038
Nuclear Physics A 967 2019-06-13
2017 Carlota Andres, Nestor Armesto, Harri Niemi, Risto Paatelainen, Carlos A. Salgado, Pia Zurita
Extracting q ˆ in event-by-event hydrodynamics and the centrality/energy puzzle
published pages: 492-495, ISSN: 0375-9474, DOI: 10.1016/j.nuclphysa.2017.05.115
Nuclear Physics A 967 2019-06-13
2016 Yasushi Nara, Harri Niemi, Akira Ohnishi, Horst Stöcker
Examination of directed flow as a signature of the softest point of the equation of state in QCD matter
published pages: , ISSN: 2469-9985, DOI: 10.1103/PhysRevC.94.034906
Physical Review C 94/3 2019-06-13
2016 Etele Molnár, Harri Niemi, Dirk H. Rischke
Derivation of anisotropic dissipative fluid dynamics from the Boltzmann equation
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.93.114025
Physical Review D 93/11 2019-06-13
2016 E. Molnár, H. Niemi, D. H. Rischke
Closing the equations of motion of anisotropic fluid dynamics by a judicious choice of a moment of the Boltzmann equation
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.94.125003
Physical Review D 94/12 2019-06-13
2017 A. Ohnishi, Y. Nara, H. Niemi, H. Stoecker
Directed Flow in Heavy-ion Collisions and Softening of Equation of State
published pages: 699, ISSN: 1899-2358, DOI: 10.5506/APhysPolBSupp.10.699
Acta Physica Polonica B Proceedings Supplement 10/3 2019-06-13

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