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Charge symmetry breaking from a chiral extrapolation of moments of quark distribution functions

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.

preprint2013arXivOpen access
P. E. ShanahanA. W. ThomasR. D. Young
hep-phhep-latnucl-th
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P. E. ShanahanA. W. ThomasR. D. Young

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