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Renormalization group invariant average momentum of non-singlet parton densities

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arxiv hep-lat/9903012 v1 pith:PYGB3RF7 submitted 1999-03-07 hep-lat

Renormalization group invariant average momentum of non-singlet parton densities

classification hep-lat
keywords renormalizationgroupinvariantnon-singletpartonaveragedensitiesmomentum
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We compute, within the Schr\"odinger functional scheme, a renormalization group invariant renormalization constant for the first moment of the non-singlet parton distribution function. The matching of the results of our non-perturbative calculation with the ones from hadronic matrix elements allows us to obtain eventually a renormalization group invariant average momentum of non-singlet parton densities, which can be translated into a preferred scheme at a specific scale.

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