1. Localization of topological charge density near Tc in quenched QCD with Wilson flow
- Author
-
Jian-Bo Zhang, Guang-Yi Xiong, and You-Hao Zou
- Subjects
Physics ,Quantum chromodynamics ,Particle physics ,010308 nuclear & particles physics ,Glueball ,High Energy Physics::Lattice ,Critical phenomena ,High Energy Physics - Lattice (hep-lat) ,Lattice field theory ,FOS: Physical sciences ,Charge density ,Inverse ,Lattice QCD ,01 natural sciences ,High Energy Physics - Lattice ,0103 physical sciences ,010306 general physics ,Topological quantum number - Abstract
We smear quenched lattice QCD ensembles with lattice volume $32^3\times 8$ by using Wilson flow. Six ensembles at temperature near the critical temperature $T_c$ corresponding to the critical inverse coupling $\beta_c=6.06173(49)$ are used to investigate the localization of topological charge density. If the effective smearing radius of Wilson flow is large enough, the density, size and peak of Harrington-Shepard (HS) caloron-like topological lumps of ensembles are stable when $\beta\leq 6.050$, but start to change significantly when $\beta\geq6.055$. The inverse participation ratio (IPR) of topological charge density shows similar results, it begins to increase when $\beta\geq 6.055$ and is stable when $\beta\leq 6.050$. The pseudoscalar glueball mass is extracted from the topological charge density correlator (TCDC) of ensembles at $T=1.19T_c,~\textrm{and }1.36T_c$, the masses are $1.915(98)\textrm{ GeV}$ and $1.829(123)\textrm{ GeV}$ respectively, they are consistent with results from conventional methods., Comment: 8 pages, 15 figures
- Published
- 2018