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| Auteurs principaux: | , , |
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| Format: | Preprint |
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2024
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| Accès en ligne: | https://arxiv.org/abs/2401.05177 |
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| _version_ | 1866929206102851584 |
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| author | Baeza-Ballesteros, Jorge Hernández, Pilar Romero-López, Fernando |
| author_facet | Baeza-Ballesteros, Jorge Hernández, Pilar Romero-López, Fernando |
| contents | We study the large $N_\text{c}$ scaling of meson-meson scattering amplitudes in a theory with $N_\text{f}=4$ degenerate quark flavors. We focus on two different scattering channels, one having the same quantum numbers as some recently found tetraquark states at LHCb. Using Lüscher's formalism, we study the $N_\text{c}$ dependence of the scattering phase shift and investigate the presence of exotic resonances in the scattering amplitude. We analyze the impact of including two-vector-meson and tetraquark-like operators to extract the finite-volume energies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_05177 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Progress in meson-meson scattering at large $N_\text{c}$ Baeza-Ballesteros, Jorge Hernández, Pilar Romero-López, Fernando High Energy Physics - Lattice High Energy Physics - Phenomenology We study the large $N_\text{c}$ scaling of meson-meson scattering amplitudes in a theory with $N_\text{f}=4$ degenerate quark flavors. We focus on two different scattering channels, one having the same quantum numbers as some recently found tetraquark states at LHCb. Using Lüscher's formalism, we study the $N_\text{c}$ dependence of the scattering phase shift and investigate the presence of exotic resonances in the scattering amplitude. We analyze the impact of including two-vector-meson and tetraquark-like operators to extract the finite-volume energies. |
| title | Progress in meson-meson scattering at large $N_\text{c}$ |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2401.05177 |