Quantum tops at circular lepton colliders
Abstract We study the quantum properties of top quark pairs in lepton colliders with unpolarised beams, including spin correlations, entanglement, and violation of Bell inequalities. We present analytical results in the SM and in the SMEFT and discuss several practical aspects, like the choice of qu...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-09-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP09(2024)001 |
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| _version_ | 1846137348870373376 |
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| author | Fabio Maltoni Claudio Severi Simone Tentori Eleni Vryonidou |
| author_facet | Fabio Maltoni Claudio Severi Simone Tentori Eleni Vryonidou |
| author_sort | Fabio Maltoni |
| collection | DOAJ |
| description | Abstract We study the quantum properties of top quark pairs in lepton colliders with unpolarised beams, including spin correlations, entanglement, and violation of Bell inequalities. We present analytical results in the SM and in the SMEFT and discuss several practical aspects, like the choice of quantisation axes and t t ¯ $$ t\overline{t} $$ threshold effects. We also note a correspondence between parity symmetry and entanglement. We find that quantum observables exhibit a rich phenomenology in the SM, and can also provide additional leverage in detecting new physics residing at higher scales. |
| format | Article |
| id | doaj-art-4bf77838b39d49ea88e361b9a44fcdf2 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-4bf77838b39d49ea88e361b9a44fcdf22024-12-08T12:15:50ZengSpringerOpenJournal of High Energy Physics1029-84792024-09-012024914110.1007/JHEP09(2024)001Quantum tops at circular lepton collidersFabio Maltoni0Claudio Severi1Simone Tentori2Eleni Vryonidou3Dipartimento di Fisica e Astronomia, Università di BolognaDepartment of Physics and Astronomy, University of ManchesterCenter for Cosmology, Particle Physics and Phenomenology, Université Catholique de LouvainDepartment of Physics and Astronomy, University of ManchesterAbstract We study the quantum properties of top quark pairs in lepton colliders with unpolarised beams, including spin correlations, entanglement, and violation of Bell inequalities. We present analytical results in the SM and in the SMEFT and discuss several practical aspects, like the choice of quantisation axes and t t ¯ $$ t\overline{t} $$ threshold effects. We also note a correspondence between parity symmetry and entanglement. We find that quantum observables exhibit a rich phenomenology in the SM, and can also provide additional leverage in detecting new physics residing at higher scales.https://doi.org/10.1007/JHEP09(2024)001Top QuarkSMEFT |
| spellingShingle | Fabio Maltoni Claudio Severi Simone Tentori Eleni Vryonidou Quantum tops at circular lepton colliders Journal of High Energy Physics Top Quark SMEFT |
| title | Quantum tops at circular lepton colliders |
| title_full | Quantum tops at circular lepton colliders |
| title_fullStr | Quantum tops at circular lepton colliders |
| title_full_unstemmed | Quantum tops at circular lepton colliders |
| title_short | Quantum tops at circular lepton colliders |
| title_sort | quantum tops at circular lepton colliders |
| topic | Top Quark SMEFT |
| url | https://doi.org/10.1007/JHEP09(2024)001 |
| work_keys_str_mv | AT fabiomaltoni quantumtopsatcircularleptoncolliders AT claudioseveri quantumtopsatcircularleptoncolliders AT simonetentori quantumtopsatcircularleptoncolliders AT elenivryonidou quantumtopsatcircularleptoncolliders |