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Higher-twist contributions to the Structure Functions coming from 4-fermion operators

S. Capitani·M. Göckeler·R. Horsley·B. Klaus·V. Linke·P. Rakow·A. Schäfer·G. Schierholz
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Abstract

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 operators in the quenched approximation. Their perturbative renormalization constants and mixing coefficients are calculated in the 't Hooft-Veltman scheme of dimensional regularization, using codes written in the algebraic manipulation computer language FORM.

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S. Capitani, M. Göckeler, R. Horsley, B. Klaus, V. Linke, P. Rakow, A. Schäfer, G. Schierholz. 1999-08-24. Higher-twist contributions to the Structure Functions coming from 4-fermion operators. https://doi.org/10.1016/s0920-5632(00)91632-3

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