Quark number susceptibilities of hot QCD up tog6lng

2002/12/31 by Aleksi Vuorinen, A. Vuorinen · 91 citations
Mathematics · Physics and Astronomy · #Algorithm #Diagonal #Geometry #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Massless particle #Mathematics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #hep-ph

paper · pdf · doi:10.1103/physrevd.67.074032

published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 67(7) (American Physical Society) · 11 pages, 3 figures Typos corrected, references added, figures modified

arxiv created 2003/03/11 · openalex publication_date 2003/04/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The pressure of hot QCD has recently been determined to the last perturbatively computable order g⁶lng by Kajantie et al. using three-dimensional effective theories. A similar method is applied here to the pressure in the presence of small but non-vanishing quark chemical potentials, and the result is used to derive the quark number susceptibilities in the limit \ensuremathμ=0. The diagonal quark number susceptibility of QCD with n_f flavors of massless quarks is evaluated to order g⁶lng and compared with recent lattice simulations. It is observed that the results qualitatively resemble the lattice ones, and that when combined with the fully perturbative but yet undetermined g⁶ term they may well explain the behavior of the lattice data for a wide range of temperatures.

Citations

• Free energy of QCD at high temperature
• 3d SU(N) + adjoint Higgs theory and finite-temperature QCD

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