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Shahnaz Taghiyeva

Publications and source records attributed to Shahnaz Taghiyeva.

2 recordsLinked to original sources
arXiv2025

Electromagnetic transition form factors of nucleons from the hard-wall AdS/QCD model

The electromagnetic transition form factors for the transition between the ground and excited states of nucleons are studied in the framework of the hard-wall model of AdS/QCD. The profile functions of the spinor and vector fields in the bulk of AdS space are presented. Using AdS/CFT correspondence between the generating functions in the bulk and boundary theories an expression for the transition form factors are obtained from the bulk action for the interaction between the photon and nucleon fields. We consider the R(1710, 1535, 1440)\rightarrow N transitions and plot the Dirac and Pauli form factor dependencies on transferred momentum square. Also, the spiral amplitudes for these transitions are presented.

hep-ph↗
arXiv2022

$a_{1}$ meson-nucleon coupling constant at finite temperature from the soft-wall AdS/QCD model

We study the temperature dependence of the $a_1$ meson-nucleon coupling constant in the framework of the soft-wall AdS/QCD model with thermal dilaton field. Profile functions for the axial-vector and fermion fields in the AdS-Schwarzschild metric are presented. It is constructed an interaction Lagrangian for the fermion-axial-vector-thermal dilaton fields system in the bulk of space-time. From this Lagrangian integral representation for the $g_{a_1NN}$ coupling constant is derived. The temperature dependence of this coupling constant is numerically analyzed.

hep-ph↗