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6 papers · 1 filter
-wave scattering length from lattice QCD
Ziwen Fu, Qu-Zhi Li, Jun Wang
The -wave scattering phase shift is computed by lattice quantum chromodynamics with flavors of Asqtad-improved staggered fermions. The energy-eigenv…
Studying the resonance parameters with staggered fermions
Ziwen Fu, Lingyun Wang
We deliver a lattice study of resonance parameters with p-wave scattering phases, which are extracted by finite-size methods at one center-of-mass frame and four moving fr…
I=1/2 low-lying mesons in lattice QCD
Ziwen Fu
Using conventional constituent-quark model, scalar , vector , and axial vector mesons are studied in the asqtad-improved staggered fermion with the wa…
Lattice QCD study of the s-wave scattering lengths in the I=0 and 2 channels
Ziwen Fu
The s-wave pion-pion () scattering lengths are computed below the inelastic threshold by the Lüscher technique with pion masses ranging from 240 MeV to 463 MeV. In the Asqtad-i…
Lattice QCD study on meson decay width
Ziwen Fu, Kan Fu
We deliver an exploratory lattice QCD examination of the meson decay width with the help of the p-wave scattering phase of pion-kaon () system in the isospi…
Dilute Liquid of Instanton and Its Topological Charge Dominate the QCD Vacuum
Z. Q. Wang, X. F. Lu, Fan Wang
APE smearing and overlap-Dirac operator are combined to filter QCD vacuum configurations. The results obtained from overlap fermions and improved 5Li cooling are compared, both of…