Heavy quarkonia spectroscopy at zero and finite temperature in bottom-up AdS/QCD

Abstract

S-wave states of charmonium and bottomonium are described using bottom-up AdS/QCD. We propose a holographic model that unifies the description of masses and decay constants, leading to a precise match with experimental data on heavy quarkonia. Finite temperature effects are considered by calculating the current-current spectral functions of heavy vector mesons. The identification of quasi-particle states as Breit-Wigner resonances in the holographic spectral function was made. We develop a prescription to subtract background contributions from the spectral function to isolate the Breit-Wigner peak. The quasi-particle holographic thermal evolution is described, allowing us to estimate the melting temperature for vector charmonia and bottomonia. Our holographic model predicts that $J/\Psi$ melts at $415$ MeV $(\sim 2.92T_c)$ and ${\rm Y}$ melts at $465$ MeV $(\sim 3.27T_c)$)

13 pages, 5 figures

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• Holographic stability for non-$q\bar{q}$ candidates
• Flavor Exotic Triply-Heavy Tetraquark States in AdS/QCD Potential
• Configuration entropy and stability of bottomonium radial excitations in a plasma with magnetic fields
• Vector meson spectral function in a dynamical AdS/QCD model
• $a_1$ meson-nucleon coupling constant at finite temperature from the soft-wall AdS/QCD model
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• Isospectrality and configurational entropy as testing tools for bottom-up AdS/QCD
• A quantum information perspective on meson melting
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• Deformations of the AdS-Schwarzschild black brane and the shear viscosity of the quark-gluon plasma
• Holography and the internal structure of charmonium
• Deformed AdS/QCD, mesonic mass spectra, and DCE: Still a margin for heavier resonances
• Effects of beta function on mass and melting temperature for scalar glueballs in AdS/QCD models at finite temperature
• Holographic bottomonium formation in a cooling strong-interaction medium at finite baryon density
• Unified analysis of screening masses for vector and axial-vector mesons and their diquark partners in the Contact Interaction model
• On incorporation of heavy-quark mass into soft-wall holographic models