Prospects of measuring quantum entanglement in $ττ$ final states at a future $e^+e^-$ Higgs factory
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866908455119355904 |
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| author | Breuning, Cedric Bechtle, Philip Desch, Klaus Grefe, Christian |
| author_facet | Breuning, Cedric Bechtle, Philip Desch, Klaus Grefe, Christian |
| contents | We introduce a method to study quantum entanglement at a future $e^+e^-$ Higgs factory (here the Future Circular Collider colliding $e^+$ and $e^-$ (FCC-ee) operating at $\sqrt{s}=240\,\mathrm{GeV}$) in the $ττ$ final state. This method is focused on the $τ\to πν_τ$ decay. We show how the introduced method works on simulated events without detector effects. When detector effects are applied, the necessary $τ$ four-momenta can be reconstructed from kinematic constraints. We will discuss the advantages of $e^+e^-$ collisions over $pp$ collisions where the reconstruction of the $ττ$ rest frame is more difficult. This discussion will focus on the influence of $p_T$ trigger cuts on the visible $π^\pm$ in the $τ$ lepton decay. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_20239 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Prospects of measuring quantum entanglement in $ττ$ final states at a future $e^+e^-$ Higgs factory Breuning, Cedric Bechtle, Philip Desch, Klaus Grefe, Christian High Energy Physics - Phenomenology High Energy Physics - Experiment We introduce a method to study quantum entanglement at a future $e^+e^-$ Higgs factory (here the Future Circular Collider colliding $e^+$ and $e^-$ (FCC-ee) operating at $\sqrt{s}=240\,\mathrm{GeV}$) in the $ττ$ final state. This method is focused on the $τ\to πν_τ$ decay. We show how the introduced method works on simulated events without detector effects. When detector effects are applied, the necessary $τ$ four-momenta can be reconstructed from kinematic constraints. We will discuss the advantages of $e^+e^-$ collisions over $pp$ collisions where the reconstruction of the $ττ$ rest frame is more difficult. This discussion will focus on the influence of $p_T$ trigger cuts on the visible $π^\pm$ in the $τ$ lepton decay. |
| title | Prospects of measuring quantum entanglement in $ττ$ final states at a future $e^+e^-$ Higgs factory |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2409.20239 |