The deuteron is modeled as a twist-6 vector field in thermal soft-wall AdS/QCD, yielding gravitational form factors, GPDs, and charge densities whose temperature dependence is governed by a modified dilaton parameter.
$ \rho$ meson-nucleon coupling constant from the soft-wall AdS/QCD model
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In the framework of the soft-wall model of AdS/QCD we calculated the $\rho$ meson nucleon coupling constant. Bulk-to boundary propagators for the free vector and spinor fields are presented, whose boundary values correspond to $\rho$ meson and to the nucleon respectively. The interaction Lagrangian between these fields is written in the bulk of AdS space and includes magnetic type interactions as well. Using the AdS/CFT correspondence from the bulk interaction action we derived the $g_{\rho NN}$ coupling constant in the boundary QCD. We found that the soft-wall model result for the $g_{\rho NN}$ constant is more close to empirical values than the one obtained in the hard-wall model.
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Deuteron gravitational form factors, generalized parton distributions, and charge density in the framework of the soft-wall AdS/QCD model
The deuteron is modeled as a twist-6 vector field in thermal soft-wall AdS/QCD, yielding gravitational form factors, GPDs, and charge densities whose temperature dependence is governed by a modified dilaton parameter.