Axial transition form factors of octet baryons in the perturbative chiral quark model
نویسندگان
چکیده
We study the axial transition form factors $G_A^{B\to B'}(Q^2)$ as well charges $g_A^{B\to B'}$ of octet baryons in perturbative chiral quark model~(PCQM) with including both ground and excited states intermediate propagators. The PCQM results on are found good agreement existing experimental data lattice-QCD values. figures out that for all transitions behave dipolelike form, which is dominantly caused by three-quark core. meson cloud ground-state propagator also plays an extremely important role but a flat contribution. excited-state contributing to could be regarded higher order correction it very limited.
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ژورنال
عنوان ژورنال: Physical review
سال: 2023
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.107.074006