Higher-twist contributions to the Structure Functions coming from 4-fermion operators
High Energy Physics - Lattice
2015-06-25 v1
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.
Keywords
Cite
@article{arxiv.hep-lat/9908038,
title = {Higher-twist contributions to the Structure Functions coming from 4-fermion operators},
author = {S. Capitani and M. Göckeler and R. Horsley and B. Klaus and V. Linke and P. Rakow and A. Schäfer and G. Schierholz},
journal= {arXiv preprint arXiv:hep-lat/9908038},
year = {2015}
}
Comments
Talk presented at LATTICE99(matrix elements), Pisa (Italy), June 29 - July 3; 3 pages; to be published in Nucl. Phys. B (Proc. Suppl.)