Critical behavior towards the chiral limit at vanishing and non-vanishing chemical potentials

Abstract

We study the scaling behavior of the (2+1)-flavor QCD crossover region towards the chiral limit with smaller-than-physical light quark mass gauge ensembles, generated using the HISQ fermion discretization. At zero chemical potential, we study the fluctuations of conserved charges and their correlations with the chiral condensate, towards the chiral limit. We analyse the role of universal and regular contributions to the above quantities. We find a preliminary estimate of the leading curvature coefficient of the chiral phase transition line using scaling arguments.

11 pages, 7 figures; talk presented at The 38th International Symposium on Lattice Field Theory, LATTICE2021 26th-30th July, 2021, Zoom/Gather@Massachusetts Institute of Technology

References in corpus (6)

• The QCD Equation of State to $\mathcal{O}({\mu }_B^6)$ from Lattice QCD
• The phase boundary for the chiral transition in (2+1)-flavor QCD at small values of the chemical potential
• On the order of the QCD chiral phase transition for different numbers of quark flavours
• Correlated Dirac Eigenvalues and Axial Anomaly in Chiral Symmetric QCD
• Sensitivity of the Polyakov loop and related observables to chiral symmetry restoration
• Conserved charge fluctuations in the chiral limit

Cited by in corpus (2)

• Microscopic Encoding of Macroscopic Universality: Scaling Properties of Dirac Eigenspectra near QCD Chiral Phase Transition
• Microscopic Encoding of Macroscopic Universality in QCD Chiral Phase Transition