Generalized Parton Distributions from Lattice QCD

Phys. Rev. Lett. 92, 042002 – Published 29 January 2004
M. Göckeler, R. Horsley, D. Pleiter, P. E. L. Rakow, A. Schäfer, G. Schierholz, and W. Schroers (QCDSF Collaboration)


We perform a quenched lattice calculation of the first moment of twist-two generalized parton distribution functions of the proton, and assess the total quark (spin and orbital angular momentum) contribution to the spin of the proton.


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  • Received 13 May 2003
  • Published 29 January 2004

© 2004 The American Physical Society

Authors & Affiliations

M. Göckeler1,2, R. Horsley3, D. Pleiter4, P. E. L. Rakow5, A. Schäfer2, G. Schierholz4,6, W. Schroers7, and (QCDSF Collaboration)

  • 1Institut für Theoretische Physik, Universität Leipzig, D-04109 Leipzig, Germany
  • 2Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany
  • 3School of Physics, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
  • 4John von Neumann-Institut für Computing NIC, Deutsches Elektronen-Synchrotron DESY, D-15738 Zeuthen, Germany
  • 5Theoretical Physics Division, Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, United Kingdom
  • 6Deutsches Elektronen-Synchrotron DESY, D-22603 Hamburg, Germany
  • 7Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

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