Perturbative Renormalisation for Low Moments of Generalised Parton Distributions with Clover Fermions

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We present the non-forward quark matrix elements of operators with one and two covariant derivatives needed for the renormalisation of the first and second moments of generalised parton distributions in one-loop lattice perturbation theory using clover fermions. For some representations of the hypercubic group commonly used in simulations we define the sets of possible mixing operators and compute the one-loop mixing matrices of renormalisation factors. Tadpole improvement is applied to the results and some numerical examples are presented.
8 pages, 2 figures, Talk given at Workshop on Computational Hadron Physics, Nicosia, September 2005

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High Energy Physics - Lattice

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http://salesiana.dossiersoluciones.com/handle/123456789/201216

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-lat/0511041
 http://arxiv.org/abs/hep-lat/0511041
 Nucl.Phys.Proc.Suppl.153:269-276,2006
 doi:10.1016/j.nuclphysbps.2006.01.037

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