The axial charge of the nucleon on the lattice and in chiral perturbation theory

A. Ali Khan; A. C. Irving; A. Sch\"afer; D. Pleiter; G. Schierholz; H. St\"uben; J. M. Zanotti; M. G\"ockeler; P. E. L. Rakow; P. H\"agler

arxiv: hep-lat/0510061 · v1 · submitted 2005-10-10 · ✦ hep-lat

The axial charge of the nucleon on the lattice and in chiral perturbation theory

A. Ali Khan , M. G\"ockeler , P. H\"agler , T. R. Hemmert , R. Horsley , A. C. Irving , D. Pleiter , P. E. L. Rakow

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A. Sch\"afer G. Schierholz H. St\"uben T. Wollenweber J. M. Zanotti

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classification ✦ hep-lat

keywords axialchargechiralnucleonperturbationtheorycarlocollaboration

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We present recent Monte Carlo data for the axial charge of the nucleon obtained by the QCDSF-UKQCD collaboration for N_f=2 dynamical quarks. We compare them with formulae from chiral perturbation theory in finite and infinite volume and find a remarkably consistent picture.

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The axial charge of the nucleon on the lattice and in chiral perturbation theory

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