Quark helicity flip generalized parton distributions from two-flavor lattice QCD

M. Gockeler; Ph. Hagler; R. Horsley; D. Pleiter; P. E. L. Rakow; A. Schafer; G. Schierholz; J. M. Zanotti

doi:10.1016/j.physletb.2005.09.002

Quark helicity flip generalized parton distributions from two-flavor lattice QCD

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

Authors: M. Gockeler , Ph. Hagler , R. Horsley , D. Pleiter , P. E. L. Rakow , A. Schafer , G. Schierholz , J. M. Zanotti

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Abstract

We present an initiatory study of quark helicity flip generalized parton distributions (GPDs) in n_f=2 lattice QCD, based on clover-improved Wilson fermions for a large number of coupling constants and pion masses. Quark helicity flip GPDs yield essential information on the transverse spin structure of the nucleon. In this work, we show first results on their lowest moments and dipole masses and study the corresponding chiral and continuum extrapolations.

Keywords

generalized parton distributions quark helicity flip lattice QCD transverse spin structure clover-improved Wilson fermions moments

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@article{arxiv.hep-lat/0507001,
  title  = {Quark helicity flip generalized parton distributions from two-flavor lattice QCD},
  author = {M. Gockeler and Ph. Hagler and R. Horsley and D. Pleiter and P. E. L. Rakow and A. Schafer and G. Schierholz and J. M. Zanotti},
  journal= {arXiv preprint arXiv:hep-lat/0507001},
  year   = {2008}
}

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15 pages, 6 figures

Quark helicity flip generalized parton distributions from two-flavor lattice QCD

Abstract

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