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Refining holographic models of the quark-gluon plasma

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arxiv 2405.02394 v2 pith:NB6WHVHO submitted 2024-05-03 hep-th hep-ph

Niko Jokela , Matti Järvinen , Aleksi Piispa This is my paper
classification hep-thhep-ph
keywords modelsdatadensityequationstatesusceptibilitieshigher-orderholographic
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We investigate quark-gluon plasma at nonzero density by using two holographic models for QCD based on either brane or Einstein-Maxwell-dilaton actions. We determine the parameters of these models through a systematic statistical fitting procedure to lattice QCD data, which encompasses the equation of state (through the entropy density) and the two lowest baryon number susceptibilities. The predictions from the two models for the higher-order susceptibilities and the equation of state at nonzero density are strikingly similar. In particular, both models suggest the presence of a critical point on the $(\mu_B,T)$-phase diagram near $\mu_B/T \approx 6$. The results for the equation of state are in agreement with lattice data for higher-order susceptibilities and experimental data for the cumulants of the net-proton number from the Beam Energy Scan program at the Relativistic Heavy-Ion Collider.

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Cited by 3 Pith papers

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

  1. Quark flavors in hot and dense holographic QCD: setup and comparison to data

    hep-ph 2025-07 conditional novelty 7.0 of 10

    A 2+1 flavor holographic QCD model fitted to lattice thermodynamics predicts a smoother nuclear-to-quark matter transition with lower latent heat than earlier V-QCD models.

  2. Locating the QCD critical point with neutron-star observations

    astro-ph.HE 2025-06 conditional novelty 6.0 of 10

    Bayesian analysis of a hybrid holographic EOS with neutron-star constraints locates the QCD critical endpoint at μ≈626 MeV and T≈119 MeV and predicts a strong first-order deconfinement transition at zero temperature.

  3. Phase transition of hot dense QCD Matter from a refined holographic EMD model

    hep-ph 2025-07 conditional novelty 4.0 of 10

    A holographic EMD model calibrated to lattice QCD predicts a kappa sigma squared peak at 3 to 5 GeV in heavy-ion collisions, provided the chemical freeze-out curve avoids the first-order transition line.

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