Next Article in Journal
Effective Interactions and Prospects for Resolution of the Fundamental Cosmological Problems in Quantum Gravity
Next Article in Special Issue
Charged ρ Meson Condensate in Neutron Stars within RMF Models
Previous Article in Journal
Exploring Free Matrix CFT Holographies at One-Loop
Open AccessConference Report

Directed Flow in Heavy-Ion Collisions and Its Implications for Astrophysics

by Yuri B. Ivanov 1,2,3
1
National Research Centre (NRC) “Kurchatov Institute”, Moscow 123182, Russia
2
National Research Nuclear University “MEPhI”, Moscow Engineering Physics Institute, Moscow 115409, Russia
3
Joint Institute for Nuclear Research (JINR), Dubna 141980, Russia
Universe 2017, 3(4), 79; https://doi.org/10.3390/universe3040079
Received: 17 October 2017 / Revised: 6 November 2017 / Accepted: 7 November 2017 / Published: 14 November 2017
(This article belongs to the Special Issue Compact Stars in the QCD Phase Diagram)
Analysis of directed flow ( v 1 ) of protons, antiprotons and pions in heavy-ion collisions is performed in the range of collision energies s N N = 2.7–39 GeV. Simulations have been done within a three-fluid model employing a purely hadronic equation of state (EoS) and two versions of the EoS with deconfinement transitions: a first-order phase transition and a smooth crossover transition. The crossover EoS is unambiguously preferable for the description of experimental data at lower collision energies s N N 20 Gev. However, at higher collision energies s N N 20 Gev. the purely hadronic EoS again becomes advantageous. This indicates that the deconfinement EoS in the quark-gluon sector should be stiffer at high baryon densities than those used in the calculation. The latter finding is in agreement with that discussed in astrophysics in connection with existence of hybrid stars with masses up to about two solar masses. View Full-Text
Keywords: heavy-ion collisions; directed flow; hydrodynamics; deconfinement; hybrid stars heavy-ion collisions; directed flow; hydrodynamics; deconfinement; hybrid stars
Show Figures

Figure 1

MDPI and ACS Style

Ivanov, Y.B. Directed Flow in Heavy-Ion Collisions and Its Implications for Astrophysics. Universe 2017, 3, 79.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop