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

Details QCD Sum Rules and the Determination of Leading Twist Non-Singlet Operator Matrix Elements QCD Sum Rules and the Determination of Leading Twist Non-Singlet Operator Matrix Elements

1996-12-25

arxiv.org/abs/hep-ph/9612467v2

Phys.Lett. B397 (1997) 287-295

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 5 figures

Scientific paper

10.1016/S0370-2693(97)00168-8

We use QCD sum rules to determine directly the leading-twist non-singlet operator matrix elements based on calculations of three-point correlator functions in configuration space. We find a different result from that obtained by integrating the structure functions' expressions obtained by Belyaev and Ioffe based on calculations of four-point correlators in momentum space. The origin of this discrepancy remains unclear.

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