22 citations · 58 across the 12 of their papers we have counts for
13 papers · 1 filter
Pion structure from lattice QCD
G. Bali, S. Collins, B. Glässle +5
We report on the lowest moment of parton distribution functions and generalized form factors for the pion at several values of the momentum transfer. Calculations are performed for…
A Non-Perturbative Operator Product Expansion
W. Bietenholz, N. Cundy, M. Goeckeler +8
Nucleon structure functions can be observed in Deep Inelastic Scattering experiments, but it is an outstanding challenge to confront them with fully non-perturbative QCD results. F…
Matrix elements of heavy-light mesons from a fine lattice
A. Ali Khan, A. Al-Haydari, V. Braun +6
Results on semileptonic decay matrix elements of heavy-light mesons and charmonium spectrum and decay constant using a fine quenched lattice are presented.
Mass spectrum and decay constants in the continuum limit
M. Goeckeler, R. Horsley, V. Linke +6
We present first results for light hadron masses, quark masses and decay constants in the continuum limit using O(a) improved fermions at three different values of the gauge coupli…
Improvement for Quenched Wilson Fermions
S. Capitani, M. Goeckeler, R. Horsley +9
We briefly describe some of our recent results for the mass spectrum and matrix elements using improved fermions for quenched QCD. Where possible a comparison is made betwee…
Improved Quenched QCD on Large Lattices - First Results
M. Goeckeler, R. Horsley, V. Linke +7
Continuing our investigations of quenched QCD with improved fermions we have started simulations for lattice size 32^3 x 64 at beta=6.2. We present first results for light hadron m…
Lattice computation of structure functions
M. Goeckeler, R. Horsley, E. -M. Ilgenfritz +4
Recent lattice calculations of hadron structure functions are described.
Perturbative renormalization of bilinear quark and gluon operators
M. Goeckeler, R. Horsley, E. -M. Ilgenfritz +6
The renormalisation constants for local bilinear quark operators are calculated using the Sheikholeslami-Wohlert improved action. In addition we compute the renormalisation constan…
Polarized Nucleon Structure Functions from Lattice QCD
M. Goeckeler, R. Horsley, E. -M. Ilgenfritz +4
We describe a high statistics quenched QCD calculation of the moments of the polarized deep-inelastic structure functions g_1 and g_2 of the proton and neutron.
The Nambu-Jona-Lasinio model with staggered fermions
A. Ali Khan, M. Goeckeler, R. Horsley +3
We investigate the neighbourhood of the chiral phase transition in a lattice Nambu--Jona-Lasinio model, using both Monte Carlo methods and lattice Schwinger-Dyson equations.
Scattering phases in the broken phase of the 4-d O(4) non-linear sigma-model
J. Westphalen, F. Zimmermann, M. Goeckeler +1
Using Luescher's method we determine the elastic scattering phases in the broken phase of the 4-dimensional O(4) non-linear sigma-model from the two-particle energy spectrum in a M…
Is the Chiral Phase Transition in Non-Compact Lattice QED Driven by Monopole Condensation?
M. Goeckeler, R. Horsley, P. E. L. Rakow +1
We investigate the recent conjecture that the chiral phase transition in non-compact lattice QED is driven by monopole condensation. The comparison of analytic and numerical result…
Renormalisation of lattice currents and the calculation of decay constants for dynamical staggered fermions
R. Altmeyer, K. D. Born, M. Goeckeler +3
A numerical calculation of the lattice staggered renormalisation constants at , is presented. It is seen that there are considerable non-perturbative effects pr…