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

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arxiv 2101.06212 v2 pith:K7CDA46Q submitted 2021-01-15 hep-ph

Miguel Angel Martin Contreras , Saulo Diles , Alfredo Vega This is my paper · ORCID
classification hep-ph
keywords holographicheavyspectraltemperaturebottom-upbreit-wignerdescribedfinite
verification ladder T0 review T1 audit T2 compute T3 formal
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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 $(\sim 2.92 ~T_c)$ and $\Upsilon$ melts at $465$ MeV $(\sim 3.27~ T_c)$)

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Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Non linear Regge trajectories of quarkonia from holography

    hep-ph 2025-12 conditional novelty 6.0 of 10

    A bottom-up AdS/QCD model with a new dilaton background produces the n^(2/3) Regge trajectories of quarkonia, matching experimental masses and decay constants.

  2. Holographic spectral functions of exotic spin-1 mesons

    hep-ph 2026-07 conditional novelty 5.0 of 10

    In a soft-wall holographic model with gluon condensate, the π1 hybrid and Zc tetraquark-like ground states both melt below the deconfinement temperature, with Zc melting slightly earlier and a larger condensate delayi...

  3. Heavy Quarkonium Spectrum and Decay Constants from a Neural-Network-Based Holographic Model

    hep-ph 2026-01 conditional novelty 5.0 of 10

    A neural-network-parametrized dilaton field reproduces the masses and leptonic decay constants of charmonium and bottomonium with 1.26% and 3.32% RMS errors, but only because those values were used as training data.

  4. Holographic quark masses and radiative decays of heavy vector mesons

    hep-ph 2025-05 conditional novelty 5.0 of 10

    The authors extract charm and bottom constituent quark masses and several quarkonium decay widths from AdS/QCD plus the Segre formula, obtaining order-of-magnitude agreement with experiment but no precise match.

  5. Deformed AdS/QCD, mesonic mass spectra, and DCE: Still a margin for heavier resonances

    hep-ph 2024-12 reject novelty 4.0 of 10

    Heavier meson masses are extrapolated from polynomial fits to entropy values of known resonances, with several matches to unconfirmed PDG states.

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