External magnetic field induced paramagnetic squeezing effect in heavy-ion collisions at the LHC
arXiv:2405.02610 · doi:10.1103/PhysRevC.110.014902
Abstract
In non-central heavy-ion collisions, the quark-gluon plasma (QGP) encounters the most intense magnetic field ever produced in nature, with a strength of approximately 10 Gauss. Recent lattice-QCD calculations reveal that the QGP exhibits paramagnetic properties at high temperatures. When an external strong magnetic field is applied, it generates an anisotropic squeezing force density that competes with pressure gradients resulting from the purely QGP geometric expansion. In this study, we employ (3+1)-dimensional ideal hydrodynamics simulations to estimate the paramagnetic squeezing effect of this force density on the anisotropic expansion of QGP in non-central Pb+Pb collisions at the Large Hadron Collider (LHC). We consider both up-to-date magnetic susceptibility and various magnetic field profiles in this work. We find that the impact of rapidly decaying magnetic fields is insignificant, while enduring magnetic fields produce a strong force density that diminishes the momentum anisotropy of the QGP by up to 10% at the intial stage, leaving a visible imprint on the elliptic flow of final charged particles. Our results provide insights into the interplay between magnetic fields and the dynamics of QGP expansion in non-central heavy-ion collisions.
11 pages, 8 figures, published in Phys. Rev. C 110, 014902 (2024)
References in corpus (53)
- The Chiral Magnetic Effect
- The effects of topological charge change in heavy ion collisions: "Event by event P and CP violation"
- Estimate of the magnetic field strength in heavy-ion collisions
- Full result for the QCD equation of state with 2+1 flavors
- Event-by-event generation of electromagnetic fields in heavy-ion collisions
- Electromagnetic field evolution in relativistic heavy-ion collisions
- Event-by-event fluctuations of magnetic and electric fields in heavy ion collisions
- Chiral Magnetic Wave
- Comments About the Electromagnetic Field in Heavy-Ion Collisions
- Magnetohydrodynamics, charged currents and directed flow in heavy ion collisions
- The QCD equation of state in background magnetic fields
- Directed Flow of Charm Quarks as a Witness of the Initial Strong Magnetic Field in Ultra-Relativistic Heavy Ion Collisions
- Magnetic field-induced gluonic (inverse) catalysis and pressure (an)isotropy in QCD
- Numerical magneto-hydrodynamics for relativistic nuclear collisions
- Pseudorapidity distribution and decorrelation of anisotropic flow within CLVisc hydrodynamics
- Synchrotron radiation by fast fermions in heavy-ion collisions
- Analytic Bjorken flow in one-dimensional relativistic magnetohydrodynamics
- Charge-dependent Flow Induced by Magnetic and Electric Fields in Heavy Ion Collisions
- QCD equation of state at nonzero magnetic fields in the Hadron Resonance Gas model
- Centrality and pseudorapidity dependence of the charged-particle multiplicity density in Xe-Xe collisions at = 5.44 TeV
- Magnetic Field Induced Polarization Difference between Hyperons and Anti-hyperons
- Centrality dependence of the pseudorapidity density distribution for charged particles in Pb-Pb collisions at TeV
- Bjorken flow in one-dimensional relativistic magnetohydrodynamics with magnetization
- Magnetic fields in heavy ion collisions: flow and charge transport
- Probing the effects of strong electromagnetic fields with charge-dependent directed flow in Pb-Pb collisions at the LHC
- Electromagnetic fields with electric and chiral magnetic conductivities in heavy ion collisions
- Paramagnetic squeezing of QCD matter
- QED effective action at finite temperature and density
- Magnetic susceptibility and equation of state of N_f = 2+1 QCD with physical quark masses
- Probing the partonic degrees of freedom in high multiplicity p-Pb collisions at 5.02 TeV
- (3+1)-D viscous hydrodynamics CLVisc at finite net baryon density: identified particle spectra, anisotropic flows and flow fluctuations across BES energies
- Quark-gluon plasma in an external magnetic field
- Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range in Pb-Pb collisions at = 2.76 TeV
- Magnetic Susceptibility of Strongly Interacting Matter across the Deconfinement Transition
- Magnetic susceptibility of QCD matter and its decomposition from the lattice
- From hydro to jet quenching, coalescence and hadron cascade: a coupled approach to solving the puzzle
- Transverse flow induced by inhomogeneous magnetic fields in the Bjorken expansion
- Magnetic field-induced squeezing effect at RHIC and at the LHC
- Anomalous magnetohydrodynamics with longitudinal boost invariance and chiral magnetic effect
- Polarization and Splitting Induced by Rotation and Magnetic Field
- Probing the initial longitudinal density profile and electromagnetic field in ultrarelativistic heavy-ion collisions with heavy quarks
- Dynamical magnetic fields in heavy-ion collisions
- Probing the electromagnetic fields in ultrarelativistic collisions with leptons from decay and charmed mesons
- Exploring the effects of electromagnetic fields and tilted bulk distribution on directed flow of D mesons in small systems
- Anomalous magnetohydrodynamics with temperature-dependent electric conductivity and application to the global polarization
- Hyperon polarization and its relation with directed flow in high-energy nuclear collisions
- Directed flow of charged particles within idealized viscous hydrodynamics at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider
- Relativistic resistive magneto-hydrodynamics code for high-energy heavy-ion collisions
- Interpreting the charge-dependent flow and constraining the chiral magnetic wave with event shape engineering
- Relativistic magnetohydrodynamics in one dimension
- Charge-dependent transverse momentum and its impact on the search for the chiral magnetic wave
- 1+1 dimensional relativistic magnetohydrodynamics with longitudinal acceleration
- Electric and magnetic conductivities in magnetized fermion systems