Charge symmetry breaking from a chiral extrapolation of moments of quark distribution functions
arXiv:1303.4806 · doi:10.1103/PhysRevD.87.094515
Abstract
We present a determination, from lattice QCD, of charge symmetry violation in the spin- independent and spin-dependent parton distribution functions of the nucleon. This is done by chirally extrapolating recent QCDSF/UKQCD Collaboration lattice simulations of the first several Mellin moments of the parton distribution functions of octet baryons to the physical point. We find small chiral corrections for the polarized moments, while the corrections are quantitatively significant in the unpolarized case.
11 pages, 10 figures
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- Charge Symmetry Violation in the Electromagnetic Form Factors of the Proton
- Electromagnetic contribution to charge symmetry violation in parton distributions
- Challenges in the extraction of physics beyond the Standard Model from electron scattering
- Progress in resolving charge symmetry violation in nucleon structure