Nucleon distribution amplitudes from lattice QCD

Roger Horsley, Meinulf Gockeler, Thomas Kaltenbrunner, Yoshifumi Nakamura, Dirk Pleiter, Paul Rakow, Andreas Schafer, Gerrit Schierholz, Hinnerk Stuben, Nikolaus Warkentin, James Zanotti

Research output: Contribution to journalArticlepeer-review

Abstract

We calculate low moments of the leading-twist and next-to-leading twist nucleon distribution amplitudes on the lattice using two flavors of clover fermions. The results are presented in the MSbar scheme at a scale of 2 GeV and can be immediately applied in phenomenological studies. We find that the deviation of the leading-twist nucleon distribution amplitude from its asymptotic form is less pronounced than sometimes claimed in the literature
Original languageEnglish
Pages (from-to)112002
Number of pages6
JournalPhysical Review Letters
Volume101
Issue number11
DOIs
Publication statusPublished - 11 Sep 2008

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