Screening correlators with chiral Fermions
arXiv:0803.1368 · doi:10.1103/PhysRevD.78.014502
Abstract
We study screening correlators of quark-antiquark composites at T=2T_c, where T_c is the QCD phase transition temperature, using overlap quarks in the quenched approximation of lattice QCD. As the lattice spacing is changed from 1/4T to a=1/6T and 1/8T, we find that screening correlators change little, in contrast with the situation for other types of lattice fermions. All correlators are close to the ideal gas prediction at small separations. The long distance falloff is clearly exponential, showing that a parametrization by a single screening length is possible at distances z > 1/T. The correlator corresponding to the thermal vector is close to the ideal gas value at all distances, whereas that for the thermal scalar deviates at large distances. This is examined through the screening lengths and momentum space correlators. There is strong evidence that the screening transfer matrix does not have reflection positivity.
10 pages, 9 figs
References in corpus (21)
- Exactly massless quarks on the lattice
- Exact chiral symmetry on the lattice and the Ginsparg-Wilson relation
- Locality properties of Neuberger's lattice Dirac operator
- Chiral Fermions on the Lattice
- The non-Abelian Debye screening length beyond leading order
- Numerical Methods for the QCD Overlap Operator: I. Sign-Function and Error Bounds
- Non-perturbative Debye mass in finite T QCD
- Fluctuations, strangeness and quasi-quarks in heavy-ion collisions from lattice QCD
- Thermodynamics of lattice QCD with two light quark flavours on a 16^3 x 8 lattice II
- Meson Correlators in Finite Temperature Lattice QCD
- Dimensional Reduction and Screening Masses in Pure Gauge Theories at Finite Temperature
- Valence quarks in the QCD plasma: quark number susceptibilities and screening
- A precise determination of T_c in QCD from scaling
- Topology, fermionic zero modes and flavor singlet correlators in finite temperature QCD
- Meson Screening Masses at high Temperature in quenched QCD with improved Wilson Quarks
- Spatial and Temporal Hadron Correlators below and above the Chiral Phase Transition
- Does the QCD plasma contain propagating gluons?
- Fermions obstruct dimensional reduction in hot QCD
- Quenched QCD at finite temperature with chiral Fermions
- Representations of Fermionic Correlators at Finite Temperatures
- Speed and Adaptability of Overlap Fermion Algorithms
Cited by in corpus (12)
- Theory and applications of atomic and ionic polarizabilities
- Meson screening masses from lattice QCD with two light and the strange quark
- In-medium modifications of open and hidden strange-charm mesons from spatial correlation functions
- Future Physics Perspectives on the Equation of State from Heavy Ion Collisions to Neutron Stars
- Approximate degeneracy of spatial correlators in high temperature QCD
- Evidence for Fully Gapped Strong Coupling S-wave Superconductivity in Bi4O4S3
- Quasi-static probes of the QCD plasma
- Screening of light mesons and charmonia at high temperature
- U_A(1) Anomaly at high temperature: the scalar-pseudoscalar splitting in QCD
- Screening Masses of Scalar and Pseudo-scalar Excitations in Quark-gluon Plasma
- Meson Correlation Function and Screening Mass in Thermal QCD
- A finite box as a tool to distinguish free quarks from confinement at high temperatures