Determination of Leading Twist Non-Singlet Operator Matrix Elements by QCD Sum Rules

Abstract

We use QCD sum rules to determine the twist-two non-singlet operator matrix elements and fixed x structure functions paying particular regard to the estimate of the errors. Particularly for the matrix element determination, we find large uncertainties due to radiative and higher dimension contributions. We consider the origin of these large corrections and comment on their consequences for other operator matrix element determinations.

10 pages, 10 figures

References in corpus (2)

• QCD Sum Rule Calculation of Twist-3 Contributions to Polarized Nucleon Structure Functions
• QCD Sum Rule Calculation of Twist-4 Corrections to Bjorken and Ellis-Jaffe Sum Rules

Cited by in corpus (5)

• Bekenstein model and the time variation of the strong coupling constant
• Distribution of valence quarks and light-cone QCD sum rules
• Gluon Polarization from QCD Sum Rules
• Combining Lattice QCD Results with Regge Phenomenology in a Description of Quark Distribution Functions
• QCD Sum Rules and the Determination of Leading Twist Non-Singlet Operator Matrix Elements