Four-quark operators in hadrons

Abstract

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. These operators are relevant for higher-twist effects. We are particularly careful to avoid mixing with lower-dimensional operators by choosing appropriate flavour structures.

Lattice 2000 (Hadronic Matrix Elements), 4 pages, 2 figures

References in corpus (1)

• Higher-Twist Contribution to Pion Structure Function: 4-Fermi Operators

Cited by in corpus (2)

• A lattice evaluation of four-quark operators in the nucleon
• Perturbative and Non-perturbative Lattice Calculations for the Study of Parton Distributions