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6 papers · 2 filters
N* Masses from an Anisotropic Lattice QCD Action
F. X. Lee, D. B. Leinweber, L. Zhou +2
We report N* masses in the spin 3/2 sector from a highly-improved anisotropic action. States with both positive and negative parity are isolated via a parity projection method. The…
Pion Decay Constant, and Chiral Log from Overlap Fermions
S. J. Dong, T. Draper, I. Horvath +2
We report our calculation of the pion decay constant , the axial renormalization constant , and the quenched chiral logarithms from the overlap fermions. The calculation…
Quenched Chiral Behavior of Hadrons with Overlap Fermions
Shao-Jing Dong, Terrence Draper, Ivan Horvath +2
We study the quenched chiral behavior of hadrons with the pseudoscalar mass as low as MeV. We look for quenched chiral logs in the pion mass, determine the renormaliz…
Topological Charge Fluctuations and Low-Lying Dirac Eigenmodes
S. J. Dong, T. Draper, I. Horvath +5
We discuss the utility of low-lying Dirac eigenmodes for studying the nature of topological charge fluctuations in QCD. The implications of previous results using the local chirali…
Hadron Masses From Novel Fat-Link Fermion Actions
J. M. Zanotti, S. Bilson-Thompson, F. D. R. Bonnet +6
The hadron mass spectrum is calculated in lattice QCD using a novel fat-link clover fermion action in which only the irrelevant operators in the fermion action are constructed usin…
Chiral Properties of Pseudoscalar Mesons on a Quenched Lattice with Overlap Fermions
S. J. Dong, T. Draper, I. Horvath +3
The chiral properties of the pseudoscalar mesons are studied numerically on a quenched lattice with the overlap fermion. We elucidate the role of the zero modes in the meson…