Heavy meson dissociation in a plasma with magnetic fields
| Autor: | Nelson R. F. Braga, Luiz F. Ferreira |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Nuclear and High Energy Physics Meson 010308 nuclear & particles physics High Energy Physics::Phenomenology FOS: Physical sciences Plasma 01 natural sciences Spectral line Dissociation (chemistry) Magnetic field High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) Thermal radiation 0103 physical sciences Quark–gluon plasma Quasiparticle High Energy Physics::Experiment Atomic physics Nuclear Experiment 010306 general physics |
| Zdroj: | Physics Letters |
| ISSN: | 0370-2693 |
| Popis: | The fraction of heavy vector mesons detected after a heavy ion collision provides information about the possible formation of a plasma state. An interesting framework for estimating the degree of dissociation of heavy mesons in a plasma is the holographic approach. It has been recently shown that a consistent picture for the thermal behavior of charmonium and bottomonium states in a thermal medium emerges from holographic bottom up models. A crucial ingredient in this new approach is the appropriate description of decay constants, since they are related to the heights of the quasiparticle peaks of the finite temperature spectral function. Here we extend this new holographic model in order to study the effect of magnetic fields on the thermal spectrum of heavy mesons. The motivation is that very large magnetic fields are present in non central heavy ion collisions and this could imply a change in the dissociation scenario. The thermal spectra of $ c \bar c$ and $ b \bar b \, $ S wave states is obtained for different temperatures and different values of the magnetic $e B$ field. Comment: 16 pages, 7 figures |
| Databáze: | OpenAIRE |
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