2020/10/29 by Dennis Bollweg, Bollweg, D., Jishnu Goswami +7
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2010.15501
openalex publication_date 2020/10/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present lattice QCD calculations of higher order cumulants of electric charge distributions for small baryon chemical potentials μB by using up to NNNLO Taylor expansions. Ratios of these cumulants are evaluated on the pseudo-critical line, Tpc(μB), of the chiral transition and compared to corresponding measurements in heavy ion collision experiments by the STAR and PHENIX Collaborations. We demonstrate that these comparisons give strong constraints on freeze-out parameters. Furthermore, we use strangeness fluctuation observables to compute the ratio μS/μB on the crossover line and compare it to μS/μB at freeze-out stemming from fits to strange baryon yields measured by the STAR Collaboration.