Nucleon form factors and O(a) Improvement

S. Capitani; M. Gockeler; R. Horsley; B. Klaus; H. Oelrich; H. Perlt; D. Petters; D. Pleiter; P. E. L. Rakow; G. Schierholz; A. Schiller; P. Stephenson

doi:10.1016/S0920-5632(99)85052-X

Nucleon form factors and O(a) Improvement

High Energy Physics - Lattice 2008-11-26 v1 High Energy Physics - Phenomenology

Authors: S. Capitani , M. Gockeler , R. Horsley , B. Klaus , H. Oelrich , H. Perlt , D. Petters , D. Pleiter , P. E. L. Rakow , G. Schierholz , A. Schiller , P. Stephenson

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Abstract

Nucleon form factors have been extensively studied both experimentally and theoretically for many years. We report here on new results of a high statistics quenched lattice QCD calculation of vector and axial-vector nucleon form factors at low momentum transfer within the Symanzik improvement programme. The simulations are performed at three kappa and three beta values allowing first an extrapolation to the chiral limit and then an extrapolation in the lattice spacing to the continuum limit. The computations are all fully non-perturbative. A comparison with experimental results is made.

Keywords

nucleon form factors O(a) improvement Symanzik improvement quenched lattice QCD chiral extrapolation continuum limit

Cite

@article{arxiv.hep-lat/9809172,
  title  = {Nucleon form factors and O(a) Improvement},
  author = {S. Capitani and M. Gockeler and R. Horsley and B. Klaus and H. Oelrich and H. Perlt and D. Petters and D. Pleiter and P. E. L. Rakow and G. Schierholz and A. Schiller and P. Stephenson},
  journal= {arXiv preprint arXiv:hep-lat/9809172},
  year   = {2008}
}

Comments

LATTICE98(matrixelement), 3 pages, Latex, 6 eps figures

Nucleon form factors and O(a) Improvement

Abstract

Keywords

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