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Minaya Allahverdiyeva

Publications and source records attributed to Minaya Allahverdiyeva.

5 recordsLinked to original sources

Generalized parton distributions of a deuteron in an AdS/QCD hard-wall model

We investigate the gravitational form factors (GFFs) and the generalized parton distributions (GPDs) of the deuteron within the framework of the hard-wall AdS/QCD model. The momentum dependence of the GFFs obtained here is in good agreement with the results of the soft-wall AdS/QCD model. The value of the gravitational mean square radius in this model agrees with the experimental data. GFFs provide a holographic description of the. Deuteron GPDs are obtained from GFFs via sum rules and have shapes of plots similar to those for GPDs extracted from the electromagnetic form factors (EFFs) calculated in the framework of the soft-wall AdS/QCD model.

hep-ph↗

Deuteron gravitational form factors, generalized parton distributions, and charge density in the framework of the soft-wall AdS/QCD model

We study the deuteron gravitational form factors (GFFs) and generalized parton distributions (GPDs) within the soft-wall AdS/QCD model, where deuteron is described by the bulk vector field with twist $τ=6$. For the finite-temperature studies, we apply the soft-wall model, which is thermalized by introducing a thermal dilaton field. GPDs and charge density are considered in impact parameter (IP) space and at zero and finite temperatures. We plot the temperature dependence of these quantities in IP space and observe a decreasing of their peaks on temperature increasing. The gravitational root means squared radius obtained here is close to the range given by experimental data for the mass radius and has low sensitivity to the temperature.

hep-ph↗

Vector Meson Gravitational Form Factors and Generalized Parton Distributions at finite temperature within the soft-wall AdS/QCD Model

We investigate the vector meson's gravitational form factors (GFFs) and generalized parton distributions (GPDs) at finite temperatures within the soft-wall AdS/ QCD model. The plotted soft-wall GFFs graphs at zero temperature are close to the hard-wall results [1]. The dependence on temperature of the GFFs and GPDs is studied using the thermal dilaton approach in the soft-wall model. Plots of thermal GFFs show that they decrease in temperature increase. Also, the gravitational radius of $ρ$ meson decreases in temperature growth and becomes zero around the critical temperature $T_c=0.2 {\rm\ GeV}$. GPDs at zero skewness are plotted and analyzed at zero and finite temperature cases.

hep-ph↗

The magnetic properties of a deuteron $r_m$ from the AdS/QCD hard-wall model

The deuteron is a spin1 particle and due to current conservation and the P and C invariance of the EM interaction, it has three EM form factors in the one photon exchange (OPE) approximation, which include the charge GC(Q2), quadrupole GQ(Q2) and magnetic GM(Q2) form factors and was calculated in [1, 2, 3] at a zero temperature within soft-wall and hard-wall models AdS/QCD. In this work, we numerically calculated the deuteron magnetic radius RM in the framework of the hard-wall model of AdS/QCD and compare our results with the experimental data and soft-wall model results [2]

hep-ph↗

The deuteron charge radıus $r_c$ in the framework of the hard-wall AdS/QCD model

We study the deuteron charge radius in the framework of a hard-wall AdS/QCD model. We present basic elements of the hard-wall model and write metrics for the AdS space. We introduce a vector field with twist $τ=6$ describing deuteron in the bulk of AdS space and other vector fields to describe photon respectively, write an effective action for the bulk fields interactions, find a $G_1(Q^2)$, $G_2(Q^2)$ and $G_3(Q^2)$ form factors, then quadrupole $G_Q(Q^2)$ and charge $G_C(Q^2)$ form-factors of a deuteron. Thus, from the charge $G_C(Q^2)$ form factor we find the deuteron charge radius $R_C$ in the framework of a hard-wall AdS/QCD model. Then we compare our result with the results soft-wall model and experimental data.

hep-ph↗