Perturbative Renormalization of Lattice Bilinear Quark Operators
arXiv:hep-lat/9603006 · doi:10.1016/0550-3213(96)00217-9
Abstract
Our aim is to compute the lower moments of the unpolarized and polarized deep-inelastic structure functions of the nucleon on the lattice. The theoretical basis of the calculation is the operator product expansion. To construct operators with the appropriate continuum behavior out of the bare lattice operators one must absorb the effects of momentum scales far greater than any physical scale into a renormalization of the operators. In this work we compute the renormalization constants of all bilinear quark operators of leading twist and spin up to four. The calculation is done for Wilson fermions and in the quenched approximation where dynamical quark loops are neglected.
28 pages, uuencoded Z-compressed postscript file. Also available from http://www.desy.de/pub/preprints/desy/1996
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- Polarized and Unpolarized Nucleon Structure Functions from Lattice QCD
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