Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions
By K. Tuchin. 2013
367 citations recorded by the source corpus.
I review the origin and properties of electromagnetic fields produced in heavy-ion collisions. The field strength immediately after a collision is proportional to the collision energy and reaches ~ at RHIC and ~ at LHC. I demonstrate by explicit analytical calculation that after dropping by about one-two orders of magnitude during the first fm/c of plasma expansion, it freezes out and lasts for as long as quark-gluon plasma lives as a consequence of finite electrical conductivity of the plasma. Magnetic field breaks spherical symmetry in the direction perpendicular to the reaction plane, and therefore all kinetic coefficients are anisotropic. I examine viscosity of QGP and show that magnetic field induces azimuthal anisotropy on plasma flow even in spherically symmetric geometry. Very strong electromagnetic field has an important impact on particle production. I discuss the problem of energy loss and polarization of fast fermions due to synchrotron radiation, consider photon decay induced by magnetic field, elucidate dissociation via Lorentz ionization mechanism, and examine electromagnetic radiation by plasma. I conclude that all processes in QGP are affected by strong electromagnetic field and call for experimental investigation.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/e2f24162c00f282da33cfcedc53838672ca65280
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In Nuclear and High Energy Physics
Citations in the corpus
- Relativistic Hydrodynamics in Heavy-Ion Collisions: General Aspects and Recent Developments (2016, background): “Thus it becomes increasingly important to consider the electromagnetic field in the hydrodynamic evolution of heavy-ion collisions [231].”
- Electrical conductivity and charge diffusion in thermal QCD from the lattice (2014, background): “For instance, the conductivity has recently been discussed in the context of charge density fluctuations [4] and the evolution of strong electromagnetic fields produced in noncentral collisions [5–10].”