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187 papers · 1 filter
Lattice-based equation of state with a critical point from constant entropy contours and its comparison to effective QCD approaches
Hitansh Shah, Mauricio Hippert, Jorge Noronha +2
In this work, we systematically assess the performance of a new method from [H. Shah et al., Phys. Rev. C 113, L012201] for locating the QCD critical point using constant-entropy c…
Speed of sound peak in two-color dense QCD: confronting effective models with lattice data
Arthur E. B. Pasqualotto, Dyana C. Duarte, Ricardo L. S. Farias +1
Lattice simulations of two-color, two-flavor Quantum Chromodynamics (QCD) at finite quark chemical potential have revealed a distinctive peak structure in the sound velocity. Altho…
Scale dependence improvement of the quartic scalar field thermal effective potential in the optimized perturbation theory
Lucas G. Câmara, Marcus Benghi Pinto, Rudnei O. Ramos
Perturbation theory, as well as most thermal field resummation methods widely used to study finite-temperature quantum field theories, presents a non-negligible renormalization sca…
Susceptibilities and Taylor coefficients of magnetic QCD from perturbation theory
Eduardo S. Fraga, Letícia F. Palhares, Tulio E. Restrepo
We compute the coefficients and of the Taylor expansion for the pressure in powers of in the presence of a large magnetic field within perturbative QC…
Speed of sound peak in isospin QCD: a natural prediction of the Medium Separation Scheme
Bruno S. Lopes, Dyana C. Duarte, Ricardo L. S. Farias +1
We present predictions for the zero-temperature equation of state at finite isospin density using the Nambu-Jona-Lasinio (NJL) model within the medium separation scheme (MSS) -- a…
Chiral and deconfinement transitions in spin-polarized quark matter
Ricardo L. S. Farias, William R. Tavares
We investigate the influence of spin polarization in strongly interacting matter by introducing a finite spin potential, , which effectively controls the spin density of the s…