80 citations · 283 across the 13 of their papers we have counts for
11 papers · 1 filter
Even parity excitations of the nucleon in lattice QCD
B. G. Lasscock, J. N. Hedditch, W. Kamleh +4
We study the spectrum of the even parity excitations of the nucleon in quenched lattice QCD. We extend our earlier analysis by including an expanded basis of nucleon interpolating…
Pseudoscalar and vector meson form factors from lattice QCD
J. N. Hedditch, W. Kamleh, B. G. Lasscock +3
We present a study of the pseudoscalar and vector meson form factors, calculated using the Fat-Link Irrelevant Clover (FLIC) action in the framework of Quenched Lattice QCD. Of par…
Vector meson electromagnetic form factors
B. G. Lasscock, J. Hedditch, D. B. Leinweber +1
The charge, magnetic and quadrupole form factors of vector mesons and the charge form factor of pseudo-scalar mesons are calculated in quenched lattice QCD. The charge radii and ma…
Light quark electromagnetic structure of baryons
J. N. Hedditch, B. G. Lasscock, D. B. Leinweber +3
Fascinating aspects of the light quark-mass behavior of baryon electromagnetic form factors are highlighted. Using FLIC fermions on quenched -improv…
Light-Quark FLIC Fermion Simulations of the Exotic Meson
J. N. Hedditch, W. Kamleh, B. G. Lasscock +3
We investigate the mass of the exotic meson, created with hybrid interpolating fields. Access to light quark masses approaching 25 MeV is facilitated by the use of the Fat…
exotic meson at light quark masses
J. N. Hedditch, W. Kamleh, B. G. Lasscock +3
The mass of the exotic meson, created with hybrid interpolating fields, is explored at light quark masses approaching 25 MeV (). Access to such light q…
Search for the pentaquark resonance signature in lattice QCD
B. G. Lasscock, J. Hedditch, D. B. Leinweber +5
Claims concerning the possible discovery of the Θ^+ pentaquark, with minimal quark content uudd\bar{s}, have motivated our comprehensive study into possible pentaquark states using…
Hybrid Meson Spectrum from the FLIC action
J. N. Hedditch, D. B. Leinweber, A. G. Williams +1
The spectral properties of hybrid meson interpolating fields are investigated. The quantum numbers of the meson are carried by smeared-source fermion operators and highly-improved…
Hybrid and Exotic Mesons from FLIC Fermions
J. N. Hedditch, D. B. Leinweber, A. G. Williams +1
The spectral properties of hybrid meson interpolating fields are investigated. The quantum numbers of the meson are carried by smeared-source fermion operators and highly-improved…
Excited Baryons from the FLIC Fermion Action
W. Melnitchouk, J. N. Hedditch, D. B. Leinweber +3
Masses of positive and negative parity excited nucleons and hyperons are calculated in quenched lattice QCD using an O(a^2) improved gluon action and a fat-link clover fermion acti…
Low-lying eigenmodes of the Wilson-Dirac operator and correlations with topological objects
Daniel-Jens Kusterer, John Hedditch, Waseem Kamleh +2
The probability density of low-lying eigenvectors of the hermitian Wilson-Dirac operator is examined. Comparisons in position and size between eigenvectors, topological charge and…