Heavy meson dissociation in a plasma with magnetic fields

Abstract

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 $eB$ field.

16 pages, 7 figures

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• Big-Bang Nucleosynthesis
• The Chiral Magnetic Effect
• Linear Confinement and AdS/QCD
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• The melting of charmonium in a magnetic field from an effective AdS/QCD model
• Inverse magnetic catalysis in holographic models of QCD
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• Holographic model for charmonium dissociation
• Holographic estimate of heavy quark diffusion in a magnetic field
• A universal order parameter for Inverse Magnetic Catalysis

Cited by in corpus (40)

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• Configuration Entropy for Quarkonium in a Finite Density Plasma
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• Entropic force and real-time dynamics of holographic quarkonium in a magnetic field
• Baryons in a soft-wall AdS-Schwarzschild approach at low temperature
• Running coupling constant at finite chemical potential and magnetic field from holography
• Hadronic Paschen-Back effect
• A systematically study of thermal width of heavy quarkonia in a finite temperature magnetized background from holography
• Configuration entropy and stability of bottomonium radial excitations in a plasma with magnetic fields
• Quasi normal modes for Heavy Vector Mesons in a Finite Density Plasma
• Configuration entropy of a rotating quark-gluon plasma from holography
• Magnetising the $\mathcal{N}=4$ Super Yang-Mills plasma
• Vector meson spectral function in a dynamical AdS/QCD model
• Quarkonium radiative decays from the hadronic Paschen-Back effect
• Quasinormal modes and dispersion relations for quarkonium in a plasma
• Rotation effect on the spectral function of heavy vector mesons in holographic QCD
• Survival probabilities of charmonia as a clue to measure transient magnetic fields
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• Temperature dependence of $\rho$ meson-nucleon coupling constant from the AdS/QCD soft-wall model
• Probing AdS/QCD backgrounds with semi-classical strings
• Holographic Description of Chiral Symmetry Breaking in a Magnetic Field in 2+1 Dimensions with an Improved Dilaton
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• Heavy quarkonium spectral function in the spinning black hole background
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• Quarkonia formation in a holographic gravity-dilaton background describing QCD thermodynamics
• Holography and the internal structure of charmonium
• Landau-Zener-Stückelberg-Majorana dynamics of magnetized quarkonia
• The Static Heavy Quark-Antiquark Potential within String Theory in Arbitrary Stationary Backgrounds
• Quarkonium spectra with magnetically induced anisotropic confinement
• Confinement/Deconfinement temperature for a rotating quark-gluon plasma