Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions
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 ~mπ2 at RHIC and ~10mπ2 at LHC. I demonstrate by explicit analytical calculation that after dropping by...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2013/490495 |
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| author | Kirill Tuchin |
| author_facet | Kirill Tuchin |
| author_sort | Kirill Tuchin |
| collection | DOAJ |
| description | 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 ~mπ2 at RHIC and ~10mπ2 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. |
| format | Article |
| id | doaj-art-4c8ef401d53c45cbb4d975f18ba8403b |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-4c8ef401d53c45cbb4d975f18ba8403b2025-02-03T01:29:11ZengWileyAdvances in High Energy Physics1687-73571687-73652013-01-01201310.1155/2013/490495490495Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion CollisionsKirill Tuchin0Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USAI 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 ~mπ2 at RHIC and ~10mπ2 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.http://dx.doi.org/10.1155/2013/490495 |
| spellingShingle | Kirill Tuchin Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions Advances in High Energy Physics |
| title | Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions |
| title_full | Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions |
| title_fullStr | Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions |
| title_full_unstemmed | Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions |
| title_short | Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions |
| title_sort | particle production in strong electromagnetic fields in relativistic heavy ion collisions |
| url | http://dx.doi.org/10.1155/2013/490495 |
| work_keys_str_mv | AT kirilltuchin particleproductioninstrongelectromagneticfieldsinrelativisticheavyioncollisions |