Holographic quark masses and radiative decays of heavy vector mesons
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| Format: | Preprint |
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2025
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| _version_ | 1866908532553547776 |
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| author | Diles, Saulo Contreras, Miguel Angel Martin Vega, Alfredo |
| author_facet | Diles, Saulo Contreras, Miguel Angel Martin Vega, Alfredo |
| contents | Holographic models of QCD provide the spectrum of heavy vector meson masses and electromagnetic decay constants through bulk computations of the current-current correlation function. Conversely, the phenomenology of heavy vector mesons is articulated by the constituent heavy quark model utilizing a non-relativistic approximation. By applying the Segre formula from non-relativistic quantum mechanics, we derive new observables from holography: the constituent quark mass, the three-photon decay width, the effective fine structure constant of the strong interaction, and the mixed one-photon and two-gluon decay width. We also derive the three-gluon decay width, the three-photon decay width, and the mixed one-photon and two-gluon decay width for the radially excited states of heavy quarkonia and compare them with available experimental data. The present results reveal a new paradigm of meson spectroscopy in AdS/QCD. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_14324 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Holographic quark masses and radiative decays of heavy vector mesons Diles, Saulo Contreras, Miguel Angel Martin Vega, Alfredo High Energy Physics - Phenomenology Holographic models of QCD provide the spectrum of heavy vector meson masses and electromagnetic decay constants through bulk computations of the current-current correlation function. Conversely, the phenomenology of heavy vector mesons is articulated by the constituent heavy quark model utilizing a non-relativistic approximation. By applying the Segre formula from non-relativistic quantum mechanics, we derive new observables from holography: the constituent quark mass, the three-photon decay width, the effective fine structure constant of the strong interaction, and the mixed one-photon and two-gluon decay width. We also derive the three-gluon decay width, the three-photon decay width, and the mixed one-photon and two-gluon decay width for the radially excited states of heavy quarkonia and compare them with available experimental data. The present results reveal a new paradigm of meson spectroscopy in AdS/QCD. |
| title | Holographic quark masses and radiative decays of heavy vector mesons |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2505.14324 |