Fluctuations of conserved charges in strong magnetic fields from lattice QCD

Autor: Ding, Heng-Tong, Li, Sheng-Tai, Liu, Jun-Hong, Wang, Xiao-Dan
Rok vydání: 2022
Předmět:
Druh dokumentu: Working Paper
Popis: We present the first lattice QCD results of the second order fluctuations of and correlations among net baryon number, electric charge and strangeness in (2+1)-flavor lattice QCD in the presence of a background magnetic field with physical pion mass $m_{\pi}=135$ MeV. To mimic the magnetic field strength produced in the early stage of heavy-ion collision experiments we use 6 different values of the magnetic field strength up to $ \sim $10$m_{\pi}^2$. We find that the correlations between baryon number and electric charge along the transition line are substantially affected by magnetic fields in the current $eB$ window, which could be useful for probing the existence of a magnetic field in heavy-ion collision experiments.
Comment: 6 pages, 1 figure, presented at the XXIXth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions (Quark Matter 2022)
Databáze: arXiv