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Phase diagram of QCD in a magnetic background

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arxiv 2111.11237 v1 pith:P3JGL5FQ submitted 2021-11-22 hep-lat hep-phhep-th

Massimo D'Elia , Lorenzo Maio , Francesco Sanfilippo , Alfredo Stanzione This is my paper
classification hep-lathep-phhep-th
keywords backgroundcriticallatticemagneticphaseresultstemperaturethermal
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We provide numerical evidence that the thermal QCD crossover turns into a first order transition in the presence of large enough magnetic background fields. The critical endpoint is found to be located between $eB = 4$ GeV$^2$ (where the pseudocritical temperature is $T_c = (98 \pm 3)$ MeV) and $eB = 9$ GeV$^2$ (where the critical temperature is $T_c = (63 \pm 5)$ MeV). Results are based on the analysis of quark condensates and number susceptibilities, determined by lattice simulations of $N_f = 2+1$ QCD at the physical point, discretized with three different lattice spacings, $a = 0.114, 0.086$ and $0.057$ fm, via rooted stout staggered fermions and a Symanzik tree level improved pure gauge action. We also present preliminary results regarding the confining properties of the thermal theory, suggesting that they could change drastically going across the phase transition

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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. Leading-Order QCD Equation of State in Strong Magnetic Fields at Nonzero Baryon Chemical Potential

    hep-lat 2025-08 conditional novelty 6.0 of 10

    Continuum-estimated leading-order EoS coefficients in magnetized strangeness-neutral QCD at nonzero baryon chemical potential show temperature-band crossings in q1 and P2 and a possible sign change of the trace anomal...

  2. Dense and Cold Magnetized Quark Matter: A Review of Magnetic-Field-Independent Regularization and the Medium Separation Scheme

    hep-ph 2026-06 unverdicted novelty 3.5 of 10

    Review of MFIR and MSS schemes showing the superconducting gap stays finite at high chemical potential in magnetized cold quark matter with no zero-temperature transition to normal phase.

  3. Hot and dense pQCD in a very strong magnetic background

    hep-ph 2025-09 conditional novelty 3.0 of 10

    Two-loop lowest-Landau-level perturbative QCD with an adopted running scale roughly matches lattice data at high temperature and predicts slightly smaller maximum masses for quark magnetars than the simple bag model.

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