Conserved charge fluctuations in the chiral limit
Mugdha Sarkar, Olaf Kaczmarek, Frithjof Karsch, Anirban Lahiri,, Christian Schmidt
TL;DR
This paper investigates how conserved charge fluctuations behave near the chiral limit in finite temperature QCD, providing insights into critical phenomena as quark masses approach zero.
Contribution
It presents lattice QCD calculations of conserved charge fluctuations at various light quark masses approaching the chiral limit using HISQ fermion action.
Findings
Signs of criticality in charge fluctuations near the chiral limit
Behavior of fluctuations as pion mass decreases towards 55 MeV
Insights into the nature of phase transitions in QCD
Abstract
We study the signs of criticality in conserved charge fluctuations and related observables of finite temperature QCD at vanishing chemical potential, as we approach the chiral limit of two light quarks. Our calculations have been performed on gauge ensembles generated using Highly Improved Staggered Quark (HISQ) fermion action, with pion masses ranging from 140 MeV to 55 MeV.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies