Isospin splitting of pion elliptic flow in relativistic heavy-ion collisions

Abstract

Based on the framework of an extended multiphase transport model with mean-field potentials in both the partonic phase and the hadronic phase, we explain the elliptic flow difference between ${\pi }^{+}$ and ${\pi }^{-}$ in the beam-energy scan program at the relativistic heavy-ion collider by incorporating the vector-isovector potential for quarks and antiquarks with different isospins. It is found that the isospin splitting of pion elliptic flow favors a strong vector-isovector interaction, and thus serves as a probe of the quark matter equation of state as well as the QCD phase structure at finite baryon and isospin chemical potentials.

arXiv comment6 pages, 6 pages

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• A Study of the Properties of the QCD Phase Diagram in High-Energy Nuclear Collisions
• The Present and Future of QCD
• Symmetry energy effects on the properties of hybrid stars
• Properties of strange quark stars with isovector interactions
• 3-dimensional QCD phase diagram with pion condensate in the NJL model
• Properties of quark-matter cores in massive hybrid stars
• Hadronization using the Wigner function approach for a multiphase transport model
• Isospin effect on baryon and charge fluctuations from the pNJL model
• The QCD critical point from the Nambu-Jona-Lasino model with a scalar-vector interaction
• Collective Excitation in High-Energy Nuclear Collisions -- In Memory of Professor Lianshou Liu
• Isospin effect on quark matter instabilities
• The elliptic flow difference between baryons and anti-baryons in heavy collision with SMASH Model