Circularly polarized photon emission from magnetized chiral plasmas
arXiv:2407.06271 · doi:10.1103/PhysRevD.110.116005
Abstract
We investigate the emission of circularly polarized photons from a magnetized quark-gluon plasma with nonzero quark-number and chiral charge chemical potentials. These chemical potentials qualitatively influence the differential emission rates of circularly polarized photons. A nonzero net electric charge density, induced by quark-number chemical potentials, enhances the overall emission of one circular polarization over the other, while a nonzero chiral charge density introduces a spatial asymmetry in the emission with respect to reflection in the transverse plane. The signs of the electrical and chiral charge densities determine which circular polarization dominates overall and whether the emission preferentially aligns with or opposes the magnetic field. Based on these findings, we propose that polarized photon emission is a promising observable for characterizing the quark-gluon plasma produced in heavy-ion collisions.
arXiv comment16 pages, 8 multi-panel figures; v2: slightly expanded, final version with a modified title; to appear in Phys. Rev. D
References in corpus (36)
- Estimate of the magnetic field strength in heavy-ion collisions
- Event-by-event generation of electromagnetic fields in heavy-ion collisions
- Chiral Magnetic and Vortical Effects in High-Energy Nuclear Collisions --- A Status Report
- Quantum field theory in a magnetic field: From quantum chromodynamics to graphene and Dirac semimetals
- Electromagnetic field evolution in relativistic heavy-ion collisions
- Azimuthal Charged-Particle Correlations and Possible Local Strong Parity Violation
- Photon Emission from Quark-Gluon Plasma: Complete Leading Order Results
- Photon Emission from Ultrarelativistic Plasmas
- Observation of charge-dependent azimuthal correlations and possible local strong parity violation in heavy ion collisions
- Electromagnetic fields and anomalous transports in heavy-ion collisions --- A pedagogical review
- Charge separation relative to the reaction plane in Pb-Pb collisions at TeV
- Rotating quark-gluon plasma in relativistic heavy ion collisions
- Vorticity in Heavy-Ion Collisions
- Azimuthally fluctuating magnetic field and its impacts on observables in heavy-ion collisions
- Bremsstrahlung and photon production in thermal QCD
- Observation of charge-dependent azimuthal correlations in pPb collisions and its implication for the search for the chiral magnetic effect
- Next-to-leading order thermal photon production in a weakly coupled quark-gluon plasma
- Observation of charge asymmetry dependence of pion elliptic flow and the possible chiral magnetic wave in heavy-ion collisions
- Constraints on the chiral magnetic effect using charge-dependent azimuthal correlations in pPb and PbPb collisions at the LHC
- Measurement of Charge Multiplicity Asymmetry Correlations in High Energy Nucleus-Nucleus Collisions at 200 GeV
- Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb-Pb collisions at = 2.76$ TeV
- Search for Chiral Magnetic Effects in High-Energy Nuclear Collisions
- Hard Thermal Photon Production in Relativistic Heavy Ion Collisions
- Spin Hydrodynamic Generation in the Charged Subatomic Swirl
- Flows and polarization of early photons with magnetic field at strong coupling
- Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at = 2.76 and 5.02 TeV
- Charge asymmetry dependency of elliptic flow in Au + Au collisions at = 200 GeV
- Di-lepton production from a single photon in strong magnetic fields: Vacuum dichroism
- Chiral Magnetic Effect in Heavy Ion Collisions: The Present and Future
- Rate and ellipticity of dilepton production in a magnetized quark-gluon plasma
- Polarization tensor of magnetized quark-gluon plasma at nonzero baryon density
- Search for the Chiral Magnetic Effect in Au+Au collisions at GeV with the STAR forward Event Plane Detectors
- Spin Polarized Photons and Di-leptons from Axially Charged Plasma
- Spin Polarized Photons from Axially Charged Plasma at Weak Coupling: Complete Leading Order
- The fermion self-energy and damping rate in a hot magnetized plasma
- Event-by-event correlations between () hyperon global polarization and handedness with charged hadron azimuthal separation in Au+Au collisions at from STAR