Axial form-factor and induced pseudoscalar form-factor of the nucleons
نویسندگان
چکیده
منابع مشابه
Axial form-factor and induced pseudoscalar form-factor of the nucleons
In this article, we calculate the axial and the induced pseudoscalar formfactors GA(t = −Q ) and GP (t = −Q ) of the nucleons in the framework of the light-cone QCD sum-rules approach up to twist-6 three valence quark light-cone distribution amplitudes, and observe that the form-factors GA(t = −Q) and GP (t = −Q ) at intermediate and large momentum transfers with Q > 2GeV 2 have significant con...
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15 صفحه اولAxial vector form factor of nucleons in a light-cone diquark model
The nucleon axial vector form factor is investigated in a light-cone quark spectator diquark model, in which Melosh rotations are applied to both the quark and vector diquark. It is found that this model gives a very good description of available experimental data and the results have very little dependence on the parameters of the model. The relation between the nucleon axial constant and the ...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2006
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s2006-02570-2