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Isovector axial-vector form factors of octet baryons in QCD
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Date
2011-06-09
Author
ERKOL, GÜRAY
Özpineci, Altuğ
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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.
Subject Keywords
Distribution Amplitudes
,
Currents
,
Nucleon
,
Resonance Physics
URI
https://hdl.handle.net/11511/36958
Journal
PHYSICAL REVIEW D
DOI
https://doi.org/10.1103/physrevd.83.114022
Collections
Department of Physics, Article
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The isovector axial vector form factors of N -> Delta transition are calculated by employing Light-cone QCD sum rules. The analytical results are analyzedby both the conventional method, and also by a Monte Carlo based approach which allows one to scan all of the parameter space. The predictions are also compared with the results in the literature, where available. Although the MonteCarlo analysis predicts large uncertainties in the predicted results, the predictions obtained by the conventional analysis ar...
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G. ERKOL and A. Özpineci, “Isovector axial-vector form factors of octet baryons in QCD,”
PHYSICAL REVIEW D
, pp. 0–0, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36958.