Saved in:
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2602.23426 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866911725820837888 |
|---|---|
| author | Antozzi, Laura Chalbaud, Esteban Déliot, Frédéric Fabbri, Federica Fiolhais, Miguel C. N. Fuks, Benjamin Onofre, António White, Martin Zhu, Pengxuan |
| author_facet | Antozzi, Laura Chalbaud, Esteban Déliot, Frédéric Fabbri, Federica Fiolhais, Miguel C. N. Fuks, Benjamin Onofre, António White, Martin Zhu, Pengxuan |
| contents | We investigate near-threshold top-antitop production at the LHC, focusing on the impact of toponium formation on spin correlations and quantum information properties of the final state. Considering the top-antitop system as a mixed two-qubit state, we reconstruct spin density matrices via quantum tomography and evaluate several observables including some inspired by quantum information. We then compare their sensitivity in discriminating toponium effects from top-antitop production without these effects. Our results demonstrate that combining these variables is expected to significantly enhance sensitivity to toponium effects, bringing new ways to explore these subtle features. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_23426 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Extracting a Toponium Signal at the LHC with Spin and Quantum Information Tools Antozzi, Laura Chalbaud, Esteban Déliot, Frédéric Fabbri, Federica Fiolhais, Miguel C. N. Fuks, Benjamin Onofre, António White, Martin Zhu, Pengxuan High Energy Physics - Phenomenology High Energy Physics - Experiment We investigate near-threshold top-antitop production at the LHC, focusing on the impact of toponium formation on spin correlations and quantum information properties of the final state. Considering the top-antitop system as a mixed two-qubit state, we reconstruct spin density matrices via quantum tomography and evaluate several observables including some inspired by quantum information. We then compare their sensitivity in discriminating toponium effects from top-antitop production without these effects. Our results demonstrate that combining these variables is expected to significantly enhance sensitivity to toponium effects, bringing new ways to explore these subtle features. |
| title | Extracting a Toponium Signal at the LHC with Spin and Quantum Information Tools |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2602.23426 |