Isovector axial-vector form factors of octet baryons in QCD

Abstract

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.

9 pages, 3 figures

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Cited by in corpus (8)

• Axial-vector form factors for the low lying octet baryons in the chiral quark constituent model
• Meson cloud contributions to baryon axial form factors
• Higher order light-cone distribution amplitudes of the Lambda baryon
• Tensor form factors of the octet hyperons in QCD
• Isovector axial vector and pseudoscalar transition form factors of $\Delta$ in QCD
• Axial transition form factors of octet baryons in the perturbative chiral quark model
• Weak interaction axial form factors of the octet baryons in nuclear medium
• Isovector Axial Vector Form Factors of Octet-Decuplet Hyperon Transition in QCD