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| Main Authors: | , , |
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| Format: | Preprint |
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2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.28063 |
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| _version_ | 1866909005025116160 |
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| author | Mendes, K. E. S. da Silva, D. T da Silva, M. L. L. |
| author_facet | Mendes, K. E. S. da Silva, D. T da Silva, M. L. L. |
| contents | We investigate the photoproduction of the tensor meson $f_2(1270)$ on the proton within a Regge-based framework, focusing on the reaction $γp \to p f_2(1270)$ in the few-GeV energy region. The production mechanism is modeled through the exchange of vector-meson Regge trajectories in the $t$-channel, including both $ρ$ and $ω$ exchanges with phenomenologically motivated couplings. The scattering amplitudes are derived using Reggeized propagators and effective hadronic vertices, allowing for the calculation of differential cross sections in the narrow-width approximation. We further extend the analysis to the $π^+π^-$ invariant mass distribution by incorporating a relativistic Breit--Wigner description of the $f_2(1270)$ resonance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_28063 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Phenomenology of $f_2(1270)$ photoproduction at energies measured with the CLAS facility Mendes, K. E. S. da Silva, D. T da Silva, M. L. L. High Energy Physics - Phenomenology High Energy Physics - Experiment We investigate the photoproduction of the tensor meson $f_2(1270)$ on the proton within a Regge-based framework, focusing on the reaction $γp \to p f_2(1270)$ in the few-GeV energy region. The production mechanism is modeled through the exchange of vector-meson Regge trajectories in the $t$-channel, including both $ρ$ and $ω$ exchanges with phenomenologically motivated couplings. The scattering amplitudes are derived using Reggeized propagators and effective hadronic vertices, allowing for the calculation of differential cross sections in the narrow-width approximation. We further extend the analysis to the $π^+π^-$ invariant mass distribution by incorporating a relativistic Breit--Wigner description of the $f_2(1270)$ resonance. |
| title | Phenomenology of $f_2(1270)$ photoproduction at energies measured with the CLAS facility |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2604.28063 |