Probing new physics in the top sector using quantum information
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866913845649342464 |
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| author | Aoude, Rafael Banks, Hannah White, Chris D. White, Martin J. |
| author_facet | Aoude, Rafael Banks, Hannah White, Chris D. White, Martin J. |
| contents | Recent studies have shown that quantitative concepts from quantum information theory can play a role in analysing collider physics, including elucidating new physics. In this paper, we study various QI measures including magic, trace distance and fidelity distance, in generic new physics scenarios modelled by the Standard Model Effective Field Theory. We argue that such measures can indeed show up differences with respect to the pure Standard Model, and we compare our results with similar findings for the concurrence discussed previously in the literature. We examine the relative sensitivity of different measures to new physics in two-dimensional bins of the top pair invariant mass and scattering angle, finding that the concurrence, magic and trace distance each emerge as the best measure in at least some regions of the phase space. This highlights the importance of exploring multiple quantum information measures in the hunt for beyond the Standard Model physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_12522 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Probing new physics in the top sector using quantum information Aoude, Rafael Banks, Hannah White, Chris D. White, Martin J. High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory Quantum Physics Recent studies have shown that quantitative concepts from quantum information theory can play a role in analysing collider physics, including elucidating new physics. In this paper, we study various QI measures including magic, trace distance and fidelity distance, in generic new physics scenarios modelled by the Standard Model Effective Field Theory. We argue that such measures can indeed show up differences with respect to the pure Standard Model, and we compare our results with similar findings for the concurrence discussed previously in the literature. We examine the relative sensitivity of different measures to new physics in two-dimensional bins of the top pair invariant mass and scattering angle, finding that the concurrence, magic and trace distance each emerge as the best measure in at least some regions of the phase space. This highlights the importance of exploring multiple quantum information measures in the hunt for beyond the Standard Model physics. |
| title | Probing new physics in the top sector using quantum information |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment High Energy Physics - Theory Quantum Physics |
| url | https://arxiv.org/abs/2505.12522 |