Published July 24, 2012
| Version v1
Journal article
Charge symmetry breaking in spin-dependent parton distributions and the Bjorken sum rule
Creators
- 1. CSSM, School of Chemistry and Physics, University of Adelaide, Adelaide SA 5005 (Australia)
- 2. School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ (United Kingdom)
- 3. Department of Physics and Center for Exploration of Energy and Matter, Indiana University, Bloomington, IN 47405 (United States)
- 4. RIKEN Advanced Institute for Computational Science, Kobe, Hyogo 650-0047 (Japan)
- 5. Institut für Theoretische Physik, Universität Regensburg, 93040 Regensburg (Germany)
- 6. Jülich Research Centre, JSC, Room 324, 52425 Jülich (Germany)
- 7. Theoretical Physics Division, Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX (United Kingdom)
- 8. Deutsches Elektronen-Synchrotron DESY, 22603 Hamburg (Germany)
- 9. Konrad-Zuse-Zentrum für Informationstechnik Berlin, 14195 Berlin (Germany)
- 10. Centre of Excellence for Particle Physics at the Terascale, School of Chemistry and Physics, University of Adelaide, Adelaide SA 5005 (Australia)
Description
We present the first determination of charge symmetry violation (CSV) in the spin-dependent parton distribution functions of the nucleon. This is done by determining the first two Mellin moments of the spin-dependent parton distribution functions of the octet baryons from Nf=2+1 lattice simulations. This exploratory work is performed using a single value of the lattice spacing and volume. The results are compared with predictions from quark models of nucleon structure. We discuss the contribution of partonic spin CSV to the Bjorken sum rule, which is important because the CSV contributions represent the only partonic corrections to the Bjorken sum rule.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2012.06.041Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2012.06.041;
- arXiv
- arXiv:1204.3492v1;
- PII
- S0370-2693(12)00680-6;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 714
- Journal Issue
- 1
- Journal Page Range
- p. 97-102
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Syrian Arab Republic
- INIS RN
- 44034410
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COMPUTERIZED SIMULATION; CORRECTIONS; DISTRIBUTION; DISTRIBUTION FUNCTIONS; LATTICE FIELD THEORY; MELLIN TRANSFORM; NUCLEONS; QUARK MODEL; QUARKS; SPIN; SUM RULES; SYMMETRY BREAKING
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; FUNCTIONS; HADRONS; INTEGRAL TRANSFORMATIONS; MATHEMATICAL MODELS; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; SIMULATION; TRANSFORMATIONS
Optional Information
- Copyright
- Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.