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arxiv: 1105.1637 · v1 · pith:LK65I3Y6new · submitted 2011-05-09 · ✦ hep-ph

Isovector axial-vector form factors of octet baryons in QCD

classification ✦ hep-ph
keywords axial-vectorbaryonsfactorsformisovectorresultsachieveagreement
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We compute the diagonal isovector axial-vector as well as induced pseudoscalar form factors of nucleon, $\Sigma$ and $\Xi$ baryons by employing the light-cone QCD sum rules to leading order in QCD and including distribution amplitudes up to twist 6. Extrapolating our sum-rules results to low-momentum transfers, we make a comparison with experimental and lattice-QCD results where we can achieve a nice qualitative and quantitative agreement.

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