A closer look at post-decay $t \bar t$ entanglement
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866911873573584896 |
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| author | Aguilar-Saavedra, J. A. |
| author_facet | Aguilar-Saavedra, J. A. |
| contents | Top pair production is ideally suited to observe post-decay entanglement, thus providing a novel test of quantum mechanics. We provide top polarised decay amplitudes that can be used to compute semi-analytical predictions and, in particular, to better understand {\em why} the post-decay entanglement arises. We obtain predictions for the LHC, identifying general phase space regions where experimental measurements of $tW$ entanglement are feasible. We also give predictions for polarised $e^+ e^-$ collisions, focusing on the possibility that the post-decay $tW$ entanglement is larger than the $t \bar t$ one. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_10988 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A closer look at post-decay $t \bar t$ entanglement Aguilar-Saavedra, J. A. High Energy Physics - Phenomenology High Energy Physics - Experiment Top pair production is ideally suited to observe post-decay entanglement, thus providing a novel test of quantum mechanics. We provide top polarised decay amplitudes that can be used to compute semi-analytical predictions and, in particular, to better understand {\em why} the post-decay entanglement arises. We obtain predictions for the LHC, identifying general phase space regions where experimental measurements of $tW$ entanglement are feasible. We also give predictions for polarised $e^+ e^-$ collisions, focusing on the possibility that the post-decay $tW$ entanglement is larger than the $t \bar t$ one. |
| title | A closer look at post-decay $t \bar t$ entanglement |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2401.10988 |