Phase structure of finite density QCD with a histogram method

2012/12/04 by Yoshiyuki Nakagawa, Sinya Aoki, Nakagawa, Yoshiyuki +13
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.1212.0890

openalex publication_date 2012/12/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the phase structure of QCD in the T-μ plane using a histogram method and the reweighting technique by performing phase quenched simulations of two-flavor QCD with RG-improved gauge action and O(a) improved Wilson quark action. Taking the effects of the complex phase of the quark determinant using the cumulant expansion method, we calculate the probability distribution function of plaquette and phase-quenched determinant as a function of T and μ. We discuss the order of the QCD phase transition consulting the shape of the probability distribution function.

Related

• Probability distribution functions in the finite density lattice QCD
• Finite density QCD phase transition in the heavy quark region
• QCD thermodynamics at finite density
• Phase quenching in finite-density QCD: models, holography, and lattice
• Ab initio study of QCD thermodynamics on the lattice at zero and finite densities