Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions
Abstract
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.
- Authors:
-
- Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1227967
- Grant/Contract Number:
- FG02-87ER40371
- Resource Type:
- Published Article
- Journal Name:
- Advances in High Energy Physics
- Additional Journal Information:
- Journal Name: Advances in High Energy Physics Journal Volume: 2013; Journal ID: ISSN 1687-7357
- Publisher:
- Hindawi Publishing Corporation
- Country of Publication:
- Egypt
- Language:
- English
Citation Formats
Tuchin, Kirill. Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions. Egypt: N. p., 2013.
Web. doi:10.1155/2013/490495.
Tuchin, Kirill. Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions. Egypt. https://doi.org/10.1155/2013/490495
Tuchin, Kirill. Tue .
"Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions". Egypt. https://doi.org/10.1155/2013/490495.
@article{osti_1227967,
title = {Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions},
author = {Tuchin, Kirill},
abstractNote = {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 ~ m π 2 at RHIC and ~ 10 m π 2 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 J / ψ 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.},
doi = {10.1155/2013/490495},
journal = {Advances in High Energy Physics},
number = ,
volume = 2013,
place = {Egypt},
year = {Tue Jan 01 00:00:00 EST 2013},
month = {Tue Jan 01 00:00:00 EST 2013}
}
https://doi.org/10.1155/2013/490495
Web of Science
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