Published September 12, 2008 | Version v1
Journal article Metadata-only

Nucleon Distribution Amplitudes from Lattice QCD

Creators

  • 1. Institut fuer Theoretische Physik, Universitaet Regensburg, 93040 Regensburg (Germany)
  • 2. School of Physics, University of Edinburgh, Edinburgh EH9 3JZ (United Kingdom)
  • 3. Deutsches Elektronen-Synchrotron DESY and John von Neumann Institut fuer Computing NIC, 15738 Zeuthen (Germany)
  • 4. Theoretical Physics Division, Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX (United Kingdom)
  • 5. Yukawa Institute for Theoretical Physics, Kyoto University (Japan)
  • 6. Konrad-Zuse-Zentrum fuer Informationstechnik Berlin, 14195 Berlin (Germany)

Description

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 MS 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

Additional details

Identifiers

DOI
10.1103/PhysRevLett.101.112002;
arXiv
arXiv:0804.1877v2;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
101
Journal Issue
11
Journal Page Range
p. 112002-112002.4
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40053904
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
AMPLITUDES; ASYMPTOTIC SOLUTIONS; FLAVOR MODEL; NUCLEONS; QUANTUM CHROMODYNAMICS
Descriptors DEC
BARYONS; COMPOSITE MODELS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRONS; MATHEMATICAL MODELS; MATHEMATICAL SOLUTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL

Optional Information

Notes
(c) 2008 The American Physical Society
Collaborations
QCDSF Collaboration