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Updated: May 3, 2026

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Elliptic flow splitting as a probe of the QCD phase structure at finite baryon chemical potential
Jun Xu1, Taesoo Song2, Che Ming Ko2
1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
Abstract:
Using a partonic transport model based on the 3-flavor Nambu-Jona-Lasinio model and a relativistic hadronic transport model to describe, respectively, the evolution of the initial partonic and the final hadronic phase of heavy-ion collisions at energies carried out in the beam-energy scan program of the BNL Relativistic Heavy Ion collider, we study the effects of both the partonic and hadronic mean-field potentials on the elliptic flow of particles relative to that of their antiparticles. We find that to reproduce the measured relative elliptic flow differences between nucleons and antinucleons as well as between kaons and antikaons requires a vector coupling constant as large as 0.5-1.1 times the scalar coupling constant in the Nambu-Jona-Lasinio model. Implications of our results in understanding the QCD phase structure at finite baryon chemical potential are discussed.
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