18–21 Jun 2024
Trani - Italy
Europe/Rome timezone
XI edition - 50 years of the charm quark

Electromagnetic form factors of the $D_{(s)}$ mesons in holographic QCD

Not scheduled
1m

Speaker

Hiwa Ahmed (University of Chinese Academy of Scineces)

Description

Studying electromagnetic form factors is crucial to understand the internal structure of hadrons, which provides information about the charge distributions and magnetic moments of hadrons. However, quantum chromodynamics cannot be used to compute these non-perturbative quantities.
In this talk, we present a study on the meson spectra, decay constants, electromagnetic form factors, and charge radius of the charmed vector, axial vector, and pseudoscalar mesons using the soft-wall holographic model with four flavors. We have obtained the electromagnetic form factors of the $D$ and $D_{s}$ mesons, as well as electric form factors of the $D^{*}$ and $D_{s}^{*}$ mesons, which are consistent with the lattice QCD data. We have also predicted the electric, magnetic, and quadrupole form factors of the $D_1$ and $D_{s1}$ mesons. Finally, we computed the charge radius of the vector, axial vector, and pseudoscalars charmed mesons.

Primary author

Hiwa Ahmed (University of Chinese Academy of Scineces)

Co-authors

Prof. Mei Huang (University of Chinese Academy of Scineces) Dr Yidian Chen (Hangzhou Normal University)

Presentation materials

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