Nucleon distribution amplitudes from lattice QCD

Details Nucleon distribution amplitudes from lattice QCD Nucleon distribution amplitudes from lattice QCD

2008-04-11

arxiv.org/abs/0804.1877v2

Phys.Rev.Lett.101:112002,2008

Physics

High Energy Physics

High Energy Physics - Lattice

5 pages, 3 figures, 2 tables. RevTeX style. Normalization for \lambda_i corrected. Discussion of the results extended. To be p

Scientific paper

10.1103/PhysRevLett.101.112002

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.

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