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Nuclear Theory

Title: 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.
Comments: 6 pages, 6 pages
Journal reference: Phys. Lett. B 798, 135002 (2019)
DOI: 10.1016/j.physletb.2019.135002
Cite as: arXiv:1908.01156 [nucl-th]
  (or arXiv:1908.01156v2 [nucl-th] for this version)

Submission history

From: Jun Xu [view email]
[v1] Sat, 3 Aug 2019 12:27:41 GMT (107kb)
[v2] Thu, 3 Oct 2019 00:25:15 GMT (140kb)

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