Charge-dependent directed flows in heavy-ion collisions by Boltzmann-Maxwell equations

Abstract

We have calculated the directed flow $v_1$ and charge-dependent directed flow $\Delta v_1$ for pions and protons in Au+Au collisions at $\sqrt{s_{NN}}=200$GeV by solving the coupled Boltzmann-Maxwell equations self-consistently. Our numerical results show that $v_1$ for pions and protons are all negative in the positive mid rapidity region and have similar behavior and magnitude. In contrast we find a quite different behavior in $\Delta v_1$ for pions and protons. The difference lies in that $\Delta v_1$ for protons mainly comes from pressure gradients of the medium, while the dominant contribution to $\Delta v_1$ for pions is from electromagnetic fields. Our results indicate that the effect of the electric field will slightly exceed that of the magnetic and lead to a small negative slope of $\Delta v_1$ for pions

9 pages, 6 figures; accepted by Phys. Rev. Research

References in corpus (13)

• The Chiral Magnetic Effect
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Chiral Magnetic Wave
• Coalescence Models For Hadron Formation From Quark Gluon Plasma
• Experimental searches for the chiral magnetic effect in heavy-ion collisions
• Directed and elliptic flow in heavy ion collisions from $E_{\mathrm{beam}}=90$ MeV/nucleon to $E_{c.m.}=200$ GeV/nucleon
• The emission of electromagnetic radiation from the early stages of relativistic heavy-ion collisions
• Charge-dependent flow as evidence of strong electromagnetic fields in heavy-ion collisions
• Directed flow of D mesons at RHIC and LHC: non-perturbative dynamics, longitudinal bulk matter asymmetry and electromagnetic fields
• Space-average electromagnetic fields and EM anomaly weighted by energy density in heavy-ion collisions
• Charge asymmetry dependence of the elliptic flow splitting in relativistic heavy-ion collisions
• JefiGPU: Jefimenko's Equations on GPU
• Testing the impact of electromagnetic fields on the directed flow of constituent quarks in heavy-ion collisions

Cited by in corpus (7)

• Anomalous magnetohydrodynamics with temperature-dependent electric conductivity and application to the global polarization
• Photoproduction of $e^{+}{e}^{-}$ in peripheral isobar collisions
• Investigating the Role of Electric Fields on Flow Harmonics in Heavy-Ion Collisions
• Electric and magnetic conductivities in magnetized fermion systems
• Nuclear deformation effects in photoproduction of $\rho$ mesons in ultraperipheral isobaric collisions
• Dynamical Electromagnetic fields and Dynamical Electromagnetic Anomaly in heavy ion collisions at intermediate energies
• Effects of magnetic field on the evolution of energy density fluctuations