Directed flow in an extended multiphase transport model

Abstract

We have studied the rapidity-odd directed flow in ${}^{197}$Au+${}^{197}$Au collisions in the beam energy range from $\sqrt{s_{NN}}$ = 7.7 to 39 GeV within the framework of an extended multiphase transport model with both partonic and hadronic mean-field potentials incorporated. Effects of the partonic scatterings, mean-field potentials, hadronization, and hadronic evolution on the directed flow are investigated, and it is found that the final directed flow is mostly sensitive to the partonic scatterings and the hadronization mechanism. Our study shows that a negative slope of the proton directed flow does not necessarily need the equation of state with a first-order phase transition.

arXiv comment7 pages, 7 figures

References in corpus (24)

• Microscopic Models for Ultrarelativistic Heavy Ion Collisions
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• Parton coalescence and antiproton/pion anomaly at RHIC
• Formation of superdense hadronic matter in high energy heavy-ion collisions
• Parton coalescence at RHIC
• Collective Flow signals the Quark Gluon Plasma
• Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars
• Beam-Energy Dependence of Directed Flow of Protons, Antiprotons and Pions in Au+Au Collisions
• Antiflow of Nucleons at the Softest Point of the EoS
• Third flow component as QGP signal
• Kaon production in heavy-ion collisions and maximum mass of neutron stars
• Role of Vector Interaction and Axial Anomaly in the PNJL Modeling of the QCD Phase Diagram
• Novel rapidity dependence of directed flow in high energy heavy ion collisions
• Beam-Energy Dependence of Directed Flow of $\Lambda$, $\bar{\Lambda }$, $K^{\pm }$, $K_s^0$ and $\varphi$ in Au+Au Collisions
• Examination of the directed flow puzzle in heavy-ion collisions
• Directed flow, a signal for the phase transition in Relativistic Nuclear Collisions?
• Geometric relation between centrality and the impact parameter in relativistic heavy-ion collisions
• Examination of directed flow as a signature of the softest point of the equation of state in QCD matter
• Systematic calculation of s-wave pion and kaon self-energies in asymmetric nuclear matter
• Elliptic flow splitting as a probe of the QCD phase structure at finite baryon chemical potential
• Effects of hadronic potentials on elliptic flows in relativistic heavy ion collisions
• Spinodal instabilities of baryon-rich quark matter in heavy ion collisions
• Collision energy dependence of elliptic flow splitting between particles and their antiparticles from an extended multiphase transport model
• Revisit of directed flow in relativistic heavy-ion collisions from a multiphase transport model

Cited by in corpus (5)

• Investigating different $\Lambda$ and $\bar{\Lambda }$ polarizations in relativistic heavy-ion collisions
• Isospin splitting of pion elliptic flow in relativistic heavy-ion collisions
• Energy dependence study of directed flow in Au+Au collisions using an improved coalescence in AMPT model
• Hadronization using the Wigner function approach for a multiphase transport model
• Elliptic flow splittings in the Polyakov-looped Nambu-Jona Lasinio transport model