The all-charm tetraquark and its contribution to two-photon processes
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866913818506952704 |
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| author | Kalamidas, Panagiotis Vanderhaeghen, Marc |
| author_facet | Kalamidas, Panagiotis Vanderhaeghen, Marc |
| contents | Prompted by several potential tetraquark states that have been reported by the LHCb, CMS and ATLAS collaborations in the di-$J/Ψ$ and $J/ΨΨ(2S)$ spectra, we investigate their contribution to two-photon processes. Within a non-relativistic potential model for the all-charm tetraquark states, we calculate the two-photon decay widths of these states, and test model independent sum rule predictions. Imposing such sum rule constraints allows us to predict the light-by-light scattering cross sections in a consistent way and check if any excess, in comparison to the Standard Model prediction, as reported by ongoing ATLAS experiments can be attributed to intermediate exotic states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_06034 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The all-charm tetraquark and its contribution to two-photon processes Kalamidas, Panagiotis Vanderhaeghen, Marc High Energy Physics - Phenomenology Prompted by several potential tetraquark states that have been reported by the LHCb, CMS and ATLAS collaborations in the di-$J/Ψ$ and $J/ΨΨ(2S)$ spectra, we investigate their contribution to two-photon processes. Within a non-relativistic potential model for the all-charm tetraquark states, we calculate the two-photon decay widths of these states, and test model independent sum rule predictions. Imposing such sum rule constraints allows us to predict the light-by-light scattering cross sections in a consistent way and check if any excess, in comparison to the Standard Model prediction, as reported by ongoing ATLAS experiments can be attributed to intermediate exotic states. |
| title | The all-charm tetraquark and its contribution to two-photon processes |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.06034 |