6533b82efe1ef96bd1293e6a

RESEARCH PRODUCT

The pion quasiparticle in the low-temperature phase of QCD

Kai ZappAnthony FrancisHarvey B. MeyerBastian B. BrandtDaniel Robaina

subject

PhysicsQuantum chromodynamics010308 nuclear & particles physicsHigh Energy Physics::LatticePhysicsQC1-999Nuclear TheoryHigh Energy Physics - Lattice (hep-lat)High Energy Physics::PhenomenologyCharge densityFOS: Physical sciences01 natural sciencesHigh Energy Physics - LatticePionDispersion relationQuantum electrodynamicsLattice (order)0103 physical sciencesEffective field theoryQuasiparticleHigh Energy Physics::Experiment010306 general physicsNuclear Experiment

description

We extend our previous studies [PhysRevD.90.054509, PhysRevD.92.094510] of the pion quasiparticle in the low-temperature phase of two-flavor QCD with support from chiral effective theory. This includes the analysis performed on a finite temperature ensemble of size $20\times 64^3$ at $T\approx 151$MeV and a lighter zero-temperature pion mass $m_{\pi} \approx 185$ MeV. Furthermore, we investigate the Gell-Mann--Oakes-Renner relation at finite temperature and the Dey-Eletsky-Ioffe mixing theorem at finite quark mass.

10.1051/epjconf/201817507045https://doaj.org/article/021051d436f04a2c8ccfcaf6a2999f9b