24 citations · 58 across the 9 of their papers we have counts for
9 papers
Applied lattice gauge calculations: diquark content of the nucleon
M. Göckeler, R. Horsley, B. Klaus +5
As an example of an application of lattice QCD we describe a computation of four-quark operators in the nucleon. The results are interpreted in a diquark language.
A lattice evaluation of four-quark operators in the nucleon
M. Göckeler, R. Horsley, B. Klaus +5
Nucleon matrix elements of various four-quark operators are evaluated in quenched lattice QCD using Wilson fermions. Some of these operators give rise to twist-four contributions t…
Four-quark operators in hadrons
S. Capitani, M. Gockeler, R. Horsley +8
We present calculations of matrix elements of 4-quark operators in the pion and in the nucleon extracted from quenched Monte Carlo simulations at beta = 6.0 using Wilson fermions.…
Higher-twist contributions to the Structure Functions coming from 4-fermion operators
S. Capitani, M. Göckeler, R. Horsley +5
We evaluate the contribution of a class of higher-twist operators to the lowest moment of the Structure Functions, by computing appropriate matrix elements of six four-fermion oper…
Light quark masses from the lattice
M. Gockeler, R. Horsley, B. Klaus +7
A completely non-perturbative estimate is given for the u/d and strange quark masses in quenched QCD using O(a) improved fermions and, for comparison, Wilson fermions. For improved…
Higher-Twist Contribution to Pion Structure Function: 4-Fermi Operators
S. Capitani, M. Göckeler, R. Horsley +5
We present quenched lattice QCD results for the contribution of higher-twist operators to the lowest non-trivial moment of the pion structure function. To be specific, we consider…