Quark number susceptibilities from resummed perturbation theory

2012/10/31 by Jens O. Andersen, Sylvain Mogliacci, Nan Su +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Particle physics #Particle physics theoretical and experimental studies #Perturbation theory (quantum mechanics) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quark #Resummation #Statistical physics #Thermal #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.87.074003

5 pages, 3 figures. v3: Figures updated, published in Phys. Rev. D

arxiv created 2013/03/12 · openalex publication_date 2013/04/03 · arxiv updated 2013/04/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We evaluate the second and fourth order quark number susceptibilities in hot QCD using two variations of resummed perturbation theory. On one hand, we carry out a one-loop calculation within hard-thermal-loop perturbation theory, and on the other hand perform a resummation of the four-loop finite density equation of state derived using a dimensionally reduced effective theory. Our results are subsequently compared with recent high precision lattice data, and their agreement thoroughly analyzed.

Citations

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