Charge Symmetry Breaking in Spin Dependent Parton Distributions and the Bjorken Sum Rule
arXiv:1204.3492 · doi:10.1016/j.physletb.2012.06.041
Abstract
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 N_f = 2 + 1 lattice simulations. 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.
7 pages, 6 figures, 3 tables. arXiv admin note: text overlap with arXiv:1012.0215
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Cited by in corpus (10)
- The Spin Structure of the Nucleon
- The Spin Structure of the Nucleon
- Dispersive estimate of the electromagnetic charge symmetry violation in the octet baryon masses
- SU(3)-flavour breaking in octet baryon masses and axial couplings
- Octet Spin Fractions and the Proton Spin Problem
- Charge symmetry breaking from a chiral extrapolation of moments of quark distribution functions
- Chiral expansion of moments of quark distributions
- Electromagnetic contribution to charge symmetry violation in parton distributions
- A Vision of Hadronic Physics
- Progress in resolving charge symmetry violation in nucleon structure